While the event was kinda fun, I did not join the event till it was almost over, thinking I had till the 24th to do it. Unfortunately when I tried to complete it, I learned I had to start days in advance to complete the entire chain. I guess you snooze you loose. This hurts casual players as they log in only to learn that they cannot complete the entire event. The only thing I did not enjoy of the event was the griefing done on PvE servers. Around the rakghoul vendor, a group of imps would stand around waiting for republic players to show up. One of the imps would explode on republic players flagging them for pvp, then immediately kill them. I did not join a PvP server, I dislike this kind of mechanic that forces me to PvP when I don't want to because some people are jerks.

The reason you are having problems with the extra mice buttons is because the game runs in administrator mode. That means the software running the mice needs to be closed and relaunched in administrator mode. Annoying I know, but until SWTOR stops running in admin mode, this is the only way to make those mice work.