I know that to use the IPod with a Mac as was intended that it has to be formated for Mac volumes which are a different file system than PC's.
Before the Windows version was available their was a program by Mediafor called XPlay that would enable a PC to work with an IPod. Obviously this will still work.
They sell it from the website directly and it works well. It does not however work with Audible content on the IPod,only ITunes 3 will do that.
Good Luck
Ed