Right guys, ive learned a lot about timing now!
I took the cam belt off, turned the cams to TDC, checked the marks on the cam sprocket and the dots on the cams to confirm this.
Then turned the crank to TDC and checked with a screwdriver AND the TDC punch mark on the flywheel to confirm this.
Put the belt on and the flywheel mark moved out of view, so reset it and tried again, this time the flywheel mark is in view but out by about half a centimetre, but IIRC it needs to be a few degrees out anyway, 6 i think?
To be safe i turned her by hand with the belt on and she done a full revolution with no problems, no crunching or anything, she went around fine.
Tried to start her, and she still wont budge.
Any ideas?