GShatta - did you get your timing issues sorted out? I have a few How To's that I found on the net that I can provide.
Once piece of advice I used (thank god) was that while the timing belt was still on. I marked the position of the timing belt relative to the cam gears and crank gear while the timing marks were lined up. To do this, I top some of my kids play paint and brushed on a white mark on the top tooth of reach cam gear marking both the tooth and gear. I did the same for the crank gear. Now, when the cam gears slip (and they will), you use your timing belt as a second reference by lining up the painted marks. Make sure that the timing reference marks are lined up as well as your first reference.
When its time to put on the new belt - transfer the marks from the old belt to the new one. Abit tricky to do and a couple of clamps or extra set of hands helps. I got even more picky and counted the belt "teeth" between the marks, just to make sure.