aol broadband connextions

hi have posted another notice earlyer but i didn't type
it very clearly.
here is my problem, i have set up a LAN using a hub
bettween to computer, and i have to admit i am a bit of a
novice when it comes to networking, to the extent i have
realativly no idea what i am doing.
i have managed to allow my computers to talk and print.
one of the computers runs XP this is the computer that my
broadband AOL modem is connected to. the other computer
runs Mellenium addition, and i am trying to conect
through AOL over the network to the internet. the XP
machine connects fine but the ME one dosn't want to att
all, can n e 1 help? thanx