Tried the cut and paste. However, what's you've got is a problem I used to have. When you edit that Quicktime movie, it makes a really small version - like 4k or so. That is the file you've uploaded to the server.
However, that file is just a pointer to the full-sized version of the movie somewhere on your harddrive at home. Probably like 1mb in size.
You'll need to upload the big file to get it to work.
Also, Imagestation seemed to be going really slow when I tried, so that makes it more difficult because you think nothing is happening.