I'm having the same issue in both the Photo Gallery & File Upload areas for CS 2.1.

I added both getAttachment and getAttachmentData to the CuteEditorconstants.js file. I now get the Modal popup dialog box in CS 2.1 now, however clicking on the Upload button does nothing.

What else should I modify? I really like your editor and the only thing stopping me from deploying this is the behavior on the Photo Gallery and File Upload area.

Thanks,
Sachin