Please help - app data lost??

Hello!
I'm new to the iPad, but have managed to get it to sync OK. It took across all my iPhone apps, but none of their data (e.g. I have a weight monitoring app that is full of data on my iphone but blank on my iPad). Is there a way to fix this? It's pointless if I have to add the data twice.
PS - please don't recommend MobileMe - I was 'live chatting' to Apple tech support to set this up and the tech person ended up wiping my whole iPhone, plus back-up, then terminated the connection and left me stranded!!!:(:mad: