<item type="image" name="InsertDocument" imagename="document" />
<item type="image" name="ImageGalleryByBrowsing" imagename="image" />
 
But when I click on either of these buttons in the editor I just get a blank page.

 

I get to ../CuteEditor_Files/Dialogs/InsertGallery.asp?UC=xxxxx

 

Do I have to set something else?