Daughter has just bought a new Dell computer with windows 7. Wants to move her itunes library from her old Acer with windows XP.
Her iPod nano is currently having a possibly terminal hissy fit and wont play/connect/sync etc.
Can anyone help? iTunes website doesn't seem to have instructions for this.

in itunes in one of the options you can authorise another pc/lappy

i "think" its just a case of copying the folders/files/songs from one onto another.

it worked for me on mine with a large usb stick

As above. Go to 'my music' folder and transfer whole of itunes folder to the 'my music' folder on new PC. Re authorise to allow playing of downloaded content from itunes store.
However downloaded and installed itunes and quicktime from apple and in the process may have picked up Security Tool malware!