Ok update time! I grabbed the first game disk I could find and that was a fairlight crack of Micromachines. Slapped it onto adf using the imagetool and then got another real disk, wrote the adf onto that!
It boots with a standard a1200 with no problems, then I imaged it back onto adf again and ran it with winuae, so far so good!
My catweasel was a slight pain to install btw! the most recent drivers didnt work for some reason? so I used what was on the supplied cd. I also had XP suddenly reboot the first time it was installed?