Wormux is in Dapper's repositories but not in Breezy's.
So there are three alternatives:
1. Compiling Wormux (not an option, probably)
2. Upgrading to Dapper
3. Using Synaptic to check if
these requirements of Wormux can be met by your system, and if they were, getting the wormux_xxx.deb package, and install it