Hopefully thins is quite a quick to answer query. I have rooted my HTC Hero and recently downloaded the Villain 3.4 2.1 ROM. It's pretty good but I'm thinking of going to the new Villain 5.2 which seems to be popular. Do I somehow need to delete the 3.4 version from the SD card or will it change automatically? It's an unlocked GSM Hero (UK), if that helps. Many thanks in advance.