Well, this is a bit bizarre. Hit a page at microsoft that said do you want to turn on auto updates. I decided what the hell and, a few seconds later, 20 decurity updates start downloading. Next, I visit MS updates page again and get the option to d/l sp2 without any validation request. After yet another reboot I'm getting more auto updates. Once these have all finshed I'll try the normal updates page again. Seems weird that autoupdates work but going to MS updates page doesn't yet.
@bonzoe - Not tried this yet but will keep in mind as a backup solution. Intresting to now regardless. Thanyou.
@Scrubbs - why couldn't I find this!!

will try shortly
@lsainsbury - Yes
@paul11974 - Will try if needed.
Thank you for eveyones help, it's really appreciated and why I keep coming to Cableforum.