Makedamic,
If you use Mac OX 10.4, you can, with Automator, create a script that will move your pics. I used to ask PM to copy my "ftp'ied" images to another folder, but when I was sending large amount of images on a deadline, I sometime became confused on which images where sent or not.
Now, in my FTP dialog box workflow, I ask PM to copy the source file I'm sending out via FTP with a rename string of OUT(+ filename) to THE SAME folder I'm working from, so when I see 2 of the same image, (one with the original filename and the other with OUT in front of the filename) I know it was sent.
After the FTP is done, I run my Automator script (icon on my dock= 1 click) to move the "OUT" files to another folder, pretty simple for my needs.
I hope this helps,
Hugo Aubert