My Ipod touch is not being recognized on my PC as a usb device.

Hey MOIMC,

Sorry to hear your computer isn't recognizing your iPod Touch when you plug it in. I was able to find two articles that might help you out:

iOS: Device not recognized in iTunes for Windows

http://support.apple.com/kb/TS1538

and

iPod not recognized when connected to Windows laptop over USB

http://support.apple.com/kb/TS1401

Hope this helps,

David