help with my brand new nano

I just received my ipod nano today, i installed the software and updated itunes, restarted my computer, and then plugged in my nano. About 1/3 of the way through transfering my music files it said i had a corrupted file, and the corrupted file was the title of the playlist i designated my nano to update it's library from. Anyways, I tried to start it back up again but after i got past the window asking me if i want to have my ipod library automatically updated, Windows tells me that my itunes.exe for version 5.0 is a corrupt file and to run diskcheck, and then the ipod resets and starts asking me if i want to automatically update my ipod. This happened twice, i redownloaded and reinstalled itunes and the ipod software updater and on the third time after unplugging my ipod (when it was ok to) the screen showed a charging battery signal and then turned off, and now it won't turn back on, i've tried resetting it and plugging it back into my computer but it still doesn't respond. So how do i get it to work again, and when i do, how do i get it to not mess up when i plug it into my computer? Sorry this was so long. Also, the battery was full when I unplugged it before it crashed.