as a start why not restore the sysyem to prior to the reinstallation of Nero - this will presumably give you the correct drive to burn to,
Would the reason that theres only two tracks be down to the fact that you have made these as MP3 Cd's (Ive done this several times) if so and your CD player doesnt recognise MP3's you will only get the one or two tracks showing, although they will play in your PC perfectly OK. have you tried the option to "make Audio CD", even if they are MP3 files, this "should" produce the correct number of tracks etc.