fck editor problems

Question

Hi i am having a fck editor in my site(admin section) for the EmailTemplate.Now the fck editor is loading fine and works normal except when i try to add image using insert/edit image button or try to view the source option in the fck editor i get the following error

The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /Web/FCKeditor/editor/fckdialog.aspx

Thanks, Sagar.

Framework:Asp.net 3.5 Os:Windows XP