Please help with image filebrowser - .NET

Hi there,

I'm having a problem with the FCKEditor image upload facility. I've searched the forum but nothing seems to help me. I hope you can find the time to offer some advice - I'm a little confused!

Firstly, I have the following properties declared for my editor:
string imagepath = "Command=GetFoldersAndFiles&Type=Image&CurrentFolder=/companyData/fiona/resources/&ServerPath=/companyData/fiona/resources/";
FCKeditor1.ImageBrowserURL = sPath + "editor/filemanager/browser/default/browser.html?Type=Image&Connector=connectors/aspx/connector.aspx?" + imagepath ;

I find that if I leave out the "imagepath" string here, I get an XML 500 server error.

The browser opens when the image button is clicked, but with a JS error (line 115 of frmresourceslist.html - object required), which seems to me as if the XML isn't getting through. Now, this is the part I'm really unsure of - how to actually create and pass this XML.

I've edited my connector.aspx codebehind thus:
string basepath = Server.MapPath("/companyData/fiona");
// does company folder exist?
if(!Directory.Exists(basepath))
Directory.CreateDirectory(basepath);

basepath+="/resources";
//does resources dir exist?
if(!Directory.Exists(basepath))
Directory.CreateDirectory(basepath);

            string xml = "<?xml version="1.0\" encoding=\"utf-8\" ?>\n";