Ok, got the partition sorted, thank you all, but now I just have one more problem (for now)

I have the O2 XDA Mini S. It has Windows Mobile 5 installed. I have never had a problem syncing this to my XP. Now I have a new version of XP installed it will not sync.

My computer will realise that its there, but ActiveSync will not connect.

Any ideas? I will be more than happy to elaborate on the problem if needed