hi again Nicholas, I must apologise for taking so long getting back to you on this one, but this has now been solved. I uninstalled the iTunes 7.5 again, went to registry and used find to extract traces of it. I then went to install new one again, like last time, and suddenly had an idea, Quicktime comes with iTunes so I uninstalled that one too and removed all traces from registry and Programme files. I then installed the new iTunes and it worked perfectly. Thought this might help someone with the same problem. Thank you again.
Regards tech_no