Computer is a windows xp sp3 with iTunes 10.3
I have an account which had about 50 downloads sitting in the download folder for items I purchased from iTunes. Everyone except 3 of the items had exclamation points next to the item. I had tried to check the store for available downloads and it said that all available downloads had been downloaded. I then cleared out my download list to see if iTunes would then see it needed to download items. Now all I have listed are my three items and it still says I don't have any available downloads.
How can I check my download history and re-download the items I have purchased?