alright guys just thought id update you on the belt noise, tightened it up and took it out for a test drive and annoyingly after 10 mins down the road that squeel came back!! arrrrgh!! so i got a friend of mine to have a look.
We changed the discs and pads even though there was still some life left in them both and it was while doing that that the problem was solved, the pads on the driver side fell to bits when took them out the caliper! literally! I was feeling better that the noise had gone but now got other problems with the "engine check" light on the dashboard. not a happy bunny!