I saw this on digg today, its an ajax powered progress meter for uploading. I thought it might do the uploader in zenphoto some good:
http://www.webdice.org/uber_uploader/

Cool, but it requires Perl. We'll look into that, but I'm not sure I want to make that a requirement (even though nearly all servers will already have it...)

Ahh right on, I should have noticed that.