hi Kaleb,
i am also using Kopete (v0.8.2) and i belive that the only protocol that officially has file transfer capability is MSN. i have never been able to get it to work on my install (Mdk 9.1) but have had friends who did. also, i found this on the Kopete site:
How come file transfers don't work?
There are many reasons for this. First, MSN is the only protocol in which we've implemented support for file transfers. Support for file transfers in Jabber is currently in CVS (April 2004). Also, file transfers may not work if you're behind a firewall - see separate FAQ in the MSN section.
hope that helps you out a bit. :-)