In regards to WLM... you won't find official clients for any proprietary IM networks on Linux (ha!), but you can install either the RTCOMM beta upgrade (built-in IM), or Pidgin Messenger, in order to get WLM and other networks working. If you're in the same situation as I (multiple networks using the same address), you may run into this bug - if so, be sure to let them know, as I can't really do anything to help them with it right now.