Tried all that except the library.xml. iTunes does not even open any type of window be it set up or anything else.

May have to rebuild and try again.

In the top level Library (as opposed to the user library) there is an iTunes folder that contains plugins. Worth a trash, just to check.

Okay i can now open it but its a bit unconventional and unstable. If i go to Macintosh HD\applications\iTunes and right click it and select Show Package contents, i go to contents then MacOS, I can click iTunes there and the normal interface opens but seems to crash very easily.

Dont know why this should work but it does.

Any ideas?

Well, the short but unhelpful answer is "beta software".

Short of the thing in my previous post (Macintosh HD/Library/iTunes), am a bit stuck

Thanks for the help