go to control panel then folder options and set show hidden folders and files.
then plug in the ipod with the stuff you want to take of (after you got rid of the virus) and make sure your ipod is in disk mode and not auto update.
so open the ipod in my computer, there should now be a folder there called system info i think it is, well open that then i think the next folder you open itunes, then library and then there will be alot of folders like a12 and all of them are filled with your music and video files.
some of the folder names i said might not be right i havnt done this in a while