So, i jailbroke my iPhone 3G to the 2.0.1 software and now when i plug in my phone itunes said it is a new iphone. so i had to name it a new iphone because i didn't want to restore my iphone. but now when i try to sync my new songs etc it won't replace my iphones music like it normally would. it's telling me that there isn't enough disc space, but i want my songs/videos on my iphone to be replaced by my itunes like it used to be.

i downloaded:

boss prefs
customize
make it mine
kate 2.0
and a bunch of games.

any ideas how i either make itunes recognize it as my old iphone so it will sync again or what is going on?

thanks for any help you can give.