In answer to the original question: "how do I become a tester" -- play the game, find bugs, report them either here, in-game petition or preferably on the bugtracker (are new bugs being directed to the new tracker??) if they are not already there. At the moment we seem to be moving from one bugtracking system to another so there is a little confusion (to me at least) where is appropriate. I think the old bugs are mostly being dealt with in the old tracker and not being ported to the new so that there are two places to look to find similar reports. Following the various game specific forums here can also be useful.