adobe audition 1.5 help

[DannyBoi]

im trying to use adobe audition 1.5 to record sound from the line in

i can do this on the crappy sound recorder you get with windows but that program isnt gd enuff lol

i have my decks plugged into the microphone slot on my pc so i can record stuff but i cant find how to record from the line in on audition
if any1 knows can u plz tell me