Thanks.  My company bought the soure code version of your product, and I would note that the error is thrown at an CuteSoft_Client\CuteEditor\ImageEditor\ImageEditor.aspx on line 25.   The querystring argument passed is a virtual path.

If possible I wanted to avoid altering any of your code to get it to work, but I don't see any way around it if it is looking for a physical path rather than somehow interfacing with the FileStorage class to get the image to manipulate.