I did not have to hook up my gba to anything to open up the reunion. I just had to score 100 on all the other episodes. I am on the reunion now and have over 200,000.00 simoleons. All I have to do is figure out the hidden want.
To unlock the last level you need to connect game link cables with ANY yes ANY it doesn't have to be sims 2 and you can unlock the level same goes for paradise island on bustin out and moon base zeta on urbz