New To Zune

Hi, I can't seem to get my zune to copy all of my music. I have 60 GB on an external drive at my pc. Zune will only gather about 26 GB. I did notice when I downloaded the software to my laptop, all of the music was converted to the zune icon. This is not the case with my pc. I even tried to copy the music from the external drive to my desktop music library file. but still no dice. both of the folders on (ext. drive and desktop were inserted in my zune retreival in setup. Next problem I have is when I set up my account I went to put in my e mail address and zune would not recognize it ,I had to put (so I could continue with setup. That said the zune thinks that I am a guest.I am wondering If I should have done something different? The laptop setup converted everything without me having to do a thing. Do I need to run the 60 gig of music with a conversion program? and what can I do about the e mail problem, I am going to subscribe to zune mkt place.