Awesome guys, bike now in local (traditional) bike shop for them to take a look at it. I think that the problem is that the original wheel was knackered and bought another one (strangely from the same shop) but it was slightly wider at the axle and i had to do a bit of a hulk hogan to get the new wheel in there. The derailleur seems to travel the right distance however where it starts is incorrect and thats why i dont think it will get onto the largest cog. I think i need one (derailleur) with more travel as i guess there are limits to how far they will go.
Anyway, i will wait and see what the LBS says
Noted about the calipers, will most likely change these and the brake levers because the hoods on mine have gone a bit nasty and just as cheap to replace the whole thing.