nerds or anyone who knows ipods i need help

Alright, here's the situation: I inherited an ipod from my uncle who got it from a friend. My mom thinks that the devil music on it is really bad and will corrupt me into becoming a mass-murderer/satan worshipper, so she said no more ipod until you change the music on it. I said ok. I downloaded itunes, bought some songs, made a playlist and got ready to download music onto the ipod when I realized that i didn't have anywhere to plug my ipod into. I went to the store and bought some really expensive firewire adapter thingy for my laptop. It's name is ADAPTEC FIRECONNECT for notebooks. It plugs into the place where you put a wireless internet card. I opened itunes, put the card in the slot, and then connected my ipod to the card adapter thing. When the ipod was plugged in, it made a beeping noise, then the ipod had a circle with a line through it that said do not disconnect. I thought to myself hmmm this looks like a good sign. Then I waited for a little while until i saw that it had recognized the ipod and had put all the songs from the ipod onto the computer. I thought hmmm this also looks good. Then the computer committed suicide. This blue screen popped up with a whole bunch of error messages, then the computer restarted. How do I fix this?