Cheers AK. Colin tried to show me the problem last night - seems to be two fold in that the disc is physically larger than something it sits against which has a kind of lip on it (?) and as you said that the bloody handbrake doesnt work - he spoke to Drew and ASP and was quoted over £150 for the parts - I wasnt too happy, but as usual Ive only got myself to blame as I should have asked Finn all this before buying.
And as if it couldnt get any worse, I got a vibration coming through the front of the car on the way up the mad mile last night at 55-60mph as if something was way out of balance. I backed right off and crawled home in tears. Didnt see anything obvious when I got home and didnt get over 40mph this morning due to the traffic.
I hope this isnt the beginning of something, coz I just havent got the stomach for it again. The car was the best its been in years before I did this. I'm kicking myself. I'll be hanging onto the old gear for a while just in case.....