I've got the lostboy.dynodns.net server working again now. I would appreciate if people can switch back to sending to that server now. It will lower the risk of me getting in trouble for using my work computer for non-work purposes. I will leave up the secondary server for another day, though, just in case the lostboy server fails again. But I do not expect it to. I switched to a new, much more stable ftp client (on the advice of Patrick, my technical support guy on the contest).
So, if possible, any future FTPs should go through lostboy.dynodns.net (port 21), username "upload" and password "upload".
When I shut down the lathompson3 server at work tomorrow, I will check all the files I received and make sure they are intact.
Thanks, all of you, for your rapid responses. It's starting to look like a contest, finally. I still need more videos to fill the block, but at least I have enough now that I won't have to cancel the whole thing.