急急急急！！！！！最近在用FCKeditor+Ckfinder，出现了几个问题，望大虾们帮忙解决！！！！！！

碰到的第一个比较棘手的问题：我FCKeditor+Ckfinder都配置好了，已经可以用了，但是发现上传图片后，图片默认保存在C:\Inetpub\wwwroot\ckfinder\userfiles 目录下，因为要做很多网站所以不可能所有用户的文件都放在一起，而我希望他们上传的文件都保存在他们自己的站点目录下，我看了N多帖子，最后还是设置了绝对路径。有没有办法设相对路径让上传的文件都保存在他们自己的站点目录下？
我用的是ckfinder_aspnet_2.0.2.1
其中config.ascx代码已经修改如下：

<%@ Control Language="C#" EnableViewState="false" AutoEventWireup="false" Inherits="CKFinder.Settings.ConfigFile" %>

<%@ Import Namespace="CKFinder.Settings" %>

<script runat="server">



	/**

	 * This function must check the user session to be sure that he/she is

	 * authorized to upload and access files using CKFinder.

	 */

	public override bool CheckAuthentication()

	{

		// WARNING : DO NOT simply return "true". By doing so, you are allowing

		// "anyone" to upload and list the files in your server. You must implement

		// some kind of session validation here. Even something very simple as...

		//

		//		return ( Session[ "IsAuthorized" ] != null && (bool)Session[ "IsAuthorized" ] == true );

		//

		// ... where Session[ "IsAuthorized" ] is set to "true" as soon as the

		// user logs on your system.



		return true;

	}



	/**

	 * All configuration settings must be defined here.

	 */

	public override void SetConfig()

	{

		// Paste your license name and key here. If left blank, CKFinder will

		// be fully functional, in Demo Mode.

		LicenseName = "";

		LicenseKey = "";



		// The base URL used to reach files in CKFinder through the browser.

		// BaseUrl = "/ckfinder/userfiles/";

                BaseUrl = "ckfinder/userfiles/";  







		// The phisical directory in the server where the file will end up. If

		// blank, CKFinder attempts to resolve BaseUrl.

		//BaseDir = Server.MapPath(BaseUrl) + "/";

                BaseDir = "D:/_Samples/ckfinder/userfiles/";

                //BaseDir = "";





		// Optional: enable extra plugins (remember to copy .dll files first).

		Plugins = new string[] {

			// "CKFinder.Plugins.FileEditor, CKFinder_FileEditor",

			// "CKFinder.Plugins.ImageResize, CKFinder_ImageResize",

			// "CKFinder.Plugins.Watermark, CKFinder_Watermark"

		};

		// Settings for extra plugins.

		PluginSettings = new Hashtable();

		PluginSettings.Add("ImageResize_smallThumb", "90x90" );

		PluginSettings.Add("ImageResize_mediumThumb", "120x120" );

		PluginSettings.Add("ImageResize_largeThumb", "180x180" );

		// Name of the watermark image in plugins/watermark folder

		PluginSettings.Add("Watermark_source", "logo.gif" );

		PluginSettings.Add("Watermark_marginRight", "5" );

		PluginSettings.Add("Watermark_marginBottom", "5" );

		PluginSettings.Add("Watermark_quality", "90" );

		PluginSettings.Add("Watermark_transparency", "80" );



		// Thumbnail settings.

		// "Url" is used to reach the thumbnails with the browser, while "Dir"

		// points to the physical location of the thumbnail files in the server.

		Thumbnails.Url = BaseUrl + "_thumbs/";

                //Thumbnails.Dir = "";



		if ( BaseDir != "" ) {

			 Thumbnails.Dir = BaseDir + "_thumbs/";

                        //Thumbnails.Dir ="";

		}               

		Thumbnails.Enabled = true;

		Thumbnails.DirectAccess = false;

		Thumbnails.MaxWidth = 100;

		Thumbnails.MaxHeight = 100;

		Thumbnails.Quality = 80;



		// Set the maximum size of uploaded images. If an uploaded image is

		// larger, it gets scaled down proportionally. Set to 0 to disable this

		// feature.

		Images.MaxWidth = 1600;

		Images.MaxHeight = 1200;

		Images.Quality = 80;



		// Indicates that the file size (MaxSize) for images must be checked only

		// after scaling them. Otherwise, it is checked right after uploading.

		CheckSizeAfterScaling = true;



		// Due to security issues with Apache modules, it is recommended to leave the

		// following setting enabled. It can be safely disabled on IIS.

		ForceSingleExtension = true;



		// For security, HTML is allowed in the first Kb of data for files having the

		// following extensions only.

		HtmlExtensions = new string[] { "html", "htm", "xml", "js" };



		// Folders to not display in CKFinder, no matter their location. No

		// paths are accepted, only the folder name.

		// The * and ? wildcards are accepted.

		HideFolders = new string[] { ".svn", "CVS" };



		// Files to not display in CKFinder, no matter their location. No

		// paths are accepted, only the file name, including extension.

		// The * and ? wildcards are accepted.

		HideFiles = new string[] { ".*" };



		// Perform additional checks for image files.

		SecureImageUploads = true;



		// The session variable name that CKFinder must use to retrieve the

		// "role" of the current user. The "role" is optional and can be used

		// in the "AccessControl" settings (bellow in this file).

		RoleSessionVar = "CKFinder_UserRole";



		// ACL (Access Control) settings. Used to restrict access or features

		// to specific folders.

		// Several "AccessControl.Add()" calls can be made, which return a

		// single ACL setting object to be configured. All properties settings

		// are optional in that object.

		// Subfolders inherit their default settings from their parents' definitions.

		//

		//	- The "Role" property accepts the special "*" value, which means

		//	  "everybody".

		//	- The "ResourceType" attribute accepts the special value "*", which

		//	  means "all resource types".

		AccessControl acl = AccessControl.Add();

		acl.Role = "*";

		acl.ResourceType = "*";

		acl.Folder = "/";



		acl.FolderView = true;

		acl.FolderCreate = true;

		acl.FolderRename = true;

		acl.FolderDelete = true;



		acl.FileView = true;

		acl.FileUpload = true;

		acl.FileRename = true;

		acl.FileDelete = true;



		// Resource Type settings.

		// A resource type is nothing more than a way to group files under

		// different paths, each one having different configuration settings.

		// Each resource type name must be unique.

		// When loading CKFinder, the "type" querystring parameter can be used

		// to display a specific type only. If "type" is omitted in the URL,

		// the "DefaultResourceTypes" settings is used (may contain the

		// resource type names separated by a comma). If left empty, all types

		// are loaded.



		DefaultResourceTypes = "";



		ResourceType type;



		type = ResourceType.Add( "Files" );

		type.Url = BaseUrl + "files/";

		type.Dir = BaseDir == "" ? "" : BaseDir + "files/";

		type.MaxSize = 0;

		type.AllowedExtensions = new string[] { "7z", "aiff", "asf", "avi", "bmp", "csv", "doc", "docx", "fla", "flv", "gif", "gz", "gzip", "jpeg", "jpg", "mid", "mov", 



"mp3", "mp4", "mpc", "mpeg", "mpg", "ods", "odt", "pdf", "png", "ppt", "pptx", "pxd", "qt", "ram", "rar", "rm", "rmi", "rmvb", "rtf", "sdc", "sitd", "swf", "sxc", "sxw", "tar", 



"tgz", "tif", "tiff", "txt", "vsd", "wav", "wma", "wmv", "xls", "xlsx", "zip" };

		type.DeniedExtensions = new string[] { };



		type = ResourceType.Add( "Images" );

		type.Url = BaseUrl + "images/";

		type.Dir = BaseDir == "" ? "" : BaseDir + "images/";

		type.MaxSize = 0;

		type.AllowedExtensions = new string[] { "bmp", "gif", "jpeg", "jpg", "png" };

		type.DeniedExtensions = new string[] { };



		type = ResourceType.Add( "Flash" );

		type.Url = BaseUrl + "flash/";

		type.Dir = BaseDir == "" ? "" : BaseDir + "flash/";

		type.MaxSize = 0;

		type.AllowedExtensions = new string[] { "swf", "flv" };

		type.DeniedExtensions = new string[] { };

	}









</script>

其中标红的为修改过的代码，这样设置了绝对路径虽然达到了效果，可是每个站点都要修改岂不是很麻烦？

第二个问题：当
BaseUrl = "/ckfinder/userfiles/";
BaseDir = "";
我上传到服务器的图片可以立刻显示出缩略图（这是默认上传到C:\Inetpub\wwwroot\ckfinder\userfiles 目录下的图片），但是改成绝对路径后，上传的图片不能立即显示缩略图，要刷新一下才显示，什么问题啊？百思不得其解....

求救 ！！！求救！！！！