I used a flash drive to put some of my friend's songs he got on iTunes on my computer, and it asks me for his pass. Can i make it so my account will still work on my iTuens after that, or will it be continued to format as his account?
Yup. iTunes lets you link up to 5 computers to one account. Essentially, you've taken one of his 5 slots.I swap iTunes purchased songs with one of my friends quite often. I can play both his and mine while logged onto my account anytime. All you have to do is type his password in once and it is taken care of.