Ok, basically iTunes stores everything on an ipod in a completely random place to stop you from just copying albums you want off your mates ipod.
The easiest way to get all the songs is thisgo into the start menu and then search and then for files and folders. Then click search for all files and folders. then click on use advanced search options. where it says look in, select your ipod. then click more advanced options at the bottom and tick search hidden files and sub folders. then hit search. it will bring up a list of every single file on the ipod. just select all the music ones, click copy and then paste them to wherever you want them on your pc.
Job's a goodun.