Just as I thought I was actually getting somewhere, someone else comes out and bites me in the ass.
I downloaded Leo4All and tried that. This time things worked alot better, I managed (with much fiddling) to format my parition to HFS+ using windows and the installer recognised it. I customised my install and clicked install. HORRAY
Wait, NO!
Soon as I click install, it comes up with a box saying its checking the DVD for consistency or something. It takes a LONG time. 10 minutes to hit 2%. By this point I was really tired from the day so went for a snooze. I woke up an hour later and just had a large "install failed" logo on the screen. Saying it couldn't write to its destination or something.

whats going on?!?!