No Emma, I'm not offering to be your friend....I'm far too old!!! But (and I have a big butt) have you tried pomsinadelaide.com or (and I might be booed for suggesting it!) adelaide-brits.com?
It's nice to chat with people before you get here, but don't worry if you can't find anyone you click with cos you are bound to find heaps of new friends once you get here. Really.
LC