Teleporter X

Teleporter X is a free file-transfer utility. It is (sort of) a replacement to AIM's file transfer feature. It was made because the AIM file transfer feature in Fire (my favorite AIM client) didn't work. It works by registering your username and IP address on a server.
To send a file to somebody, you can either enter the IP or the username in the "send to" field. One thing that we haven't figured out is getting around firewalls.