I assume the servers for this game were taken down long ago. Is there any other way of playing over the net with my friends?
There are a few private servers that still exist(I think). I found this one, http://www.schtserv.com/, but the website hasn't been updated in a while.
Yes, the official game servers are offline, but you can still play on private servers with your GameCube.
For example, on
In the lobbies, you can chat with players on all platforms (Dreamcast/Windows), but playing is (currently) only possible with other GameCube users.
I found a way to connect to easily connect to private servers using a hacked Wii to play the game using Devolution, a gamecube emulator that can emulate the broadband adapter.
I recently hacked my friend's Wii and set this up for him so if there are any further questions feel free to message me.