Matt from the Balance of Power mod made a small Quake 3 mod using the newly released Quake 3 source code.
These are the binaries for the Hook tutorial I posted earlier.
I still am very ignorant about how Quake 3 mods work but I believe all clients will need the ui.qvm file (this is just a guess).
Also I heard rumors of an already finished id skin for the hook floating around in the pk3 file somewhere but I have not
seen this personally. So as of now, the hook is unskinned.
Just extract this zip file to your quake3 directory. Then to run the mod you do:
quake3 +set fs_game hook +map q3tourney4
for example.
--Matt Ownby
(find me on irc.enterthegame.com in #JUN as JB[JUN])