iTunes question for anyone technically more able then moi

[TheBang]

Anyway, what viddy said is what you need. Contact them using the iTunes support contacts, explain the situation, and they'll usually let you download the files again. Try this link:

http://www.apple.com/support/itunes/store/browser/

Click "Purchase(s) - missing" and then click on "My hard drive crashed / all of my purchases were erased".