Okay just a few pointers, problems I think you folks may encounter. When you initially run the game you may not have the correct zone list. What you need to do is when you first open the game, before you join a zone. Click View on the pull down menu, then go to Zones. Once that menu opens up, click the "Download" button and find SSCU Extreme Games on the list. Add it to your zone list and hit okay. Then join that zone.
As before as Jami said, to find people type ?find playername. Then you can move to that Arena by pressing Esc, then A, then PgUp and PgDn to navigate. Use the help files or F1 for the basic controls etc.
Also, you can message the entire squad. Type # then your message.