Transiting between terminals is a messy affair. After you finish with passport control at Terminal 2 you then reclaim baggage. The problem with T2 is that it's basically designed to handle ONE flight because it's so small.
You then take a bus to Terminal 1. But I recommend making sure it's T1-these people have so many terminals and halls that it's mind boggling. If it's an international flight, then it's definately Terminal 1. If it's local, then ASK WHERE TO GO.
Good luck...