"Also, how do I get the songs on my Ipod back onto Itunes?"
Yamipod may not work for you if you have iTunes version 7 or later although there is an "untested" version.
Check out the instructions/suggestions here.
Music from iPod to computer.
There's also another method. I've successfully tested this across several different Windows PCs.
Open iTunes and select edit/preferences/advanced/general. Put a check mark in the box marked "copy files to iTunes music folder when adding to library" and also "keep iTunes music folder organized", then click 'ok'.
Connect the iPod whilst holding down the shift/ctrl keys to prevent any auto sync, and if you see the dialogue window asking if you want to sync to this itunes library, click
'no'.
Then go to file/add folder, open 'my computer', select your iPod and click 'ok'.
The music files should transfer to your iTunes.
If none of these methods work, try
CopyPod which also supports the transfer of videos from iPod to computer.