Hello mlynn101,
It sounds like you are needing to download your previous purchases to your computer, but they are appearing on your iOS device just fine. You should be able to download them from your Purchases list in the iTunes Store with the following article:
Download past purchases
http://support.apple.com/kb/HT2519
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Open iTunes and go to the iTunes Store.
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Click Purchased in the Quick Links section.
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Select the content type that you want to download (Music, Movies, TV Shows, Apps, or Books).
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Select Not in My Library to view purchased content that isn't on your computer.
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Find the item that you want to download. You can browse using the menu to the left. If you have more than 2,000 songs, you will see Recent Purchases instead of All Songs or Albums.
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Click the Download icon next to the item you want to download.
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If an item is already in your library, the Download icon won't appear.
You can also enable iTunes to show your purchases from other devices in the Preferences:
Show iTunes in the Cloud purchases |
Display items purchased from the iTunes Store that haven’t been downloaded to your computer. These items have a Download button next to them. |
iTunes 11 for Windows: iTunes Store preferences
http://support.apple.com/kb/PH12468
You can even turn on automatic download for your purchases on other devices so this doesn't happen again:
iTunes Store: How to enable Automatic Downloads
http://support.apple.com/kb/HT4539
Thank you for using Apple Support Communities.
Regards,
Sterling