Hello hypratt,
And welcome to Apple Discussions!
There are several ways you can pull the music off your iPod and onto iTunes. The first link after the Apple support document below provides step-by-step instructions for the direct method if you have a PC as well as a few third party applications (for both the Mac and PC) if you choose to go that route instead. You can also do a simple Google search for "copy music from iPod to computer" and you should receive a number of sites that can help you out.
Just make sure that when you have your iPod plugged into your computer, that you don't hit "Erase and Sync" before completing the task of copying your music over.
Also, if you have any purchased music, you will probably have to re-authorize your computer by heading to the Store drop down menu and choosing "Authorize computer."
[5 Ways to Copy Music OFF your iPod and onto iTunes|http://www.metaphoriclabs.com/articles/5-ways-to-copy-music-off-your-ipo d-windows-mac-os-x>
Here are a few more helpful sites.
[Copying Content from your iPod to your Computer - The Definitive Guide|http://www.ilounge.com/index.php/articles/comments/copying-music-from-ipo d-to-computer]
Or
[How to copy songs your iPod to your PC|http://lifehacker.com/software/ipod/how-to-copy-songs-from-your-ipod-to-your -pc-105256.php]
Hope this helps.
B-rock
