Had leopard, upgraded to 10a432 snow leopard, if that's not the GM can I upgrade to it from there? I'm hearing not... I had a santa rosa 2007 mbp and bought the leopard upgrade disk (got it around leopard launch), it messed up too many times, got an early 2008 mbp replacement with leopard on it, upgraded that to 10a432. so i only have a leopard upgrade disk and 10a432. halp?