This wiki has been moved to https://github.com/SuperTux/wiki into the mediawiki branch.
Most members of the SuperTux team frequently hang out in the #supertux IRC channel on freenode network.
If you don't know about Internet Relay Chat yet or don't know about freenode network, there are extensive articles on Wikipedia.
Or, you could just download an IRC client (e.g. XChat), connect to freenode and join channel #supertux.
Please keep basic netiquette in mind. Wait a few minutes after joining, then ask your question. If nobody answers, don't be upset - maybe nobody knows the answer. You might try one of the Mailing Lists then, as they are read by far more people.