1998 Pontiac Grand Prix battery drains no power to one roll

I have no power to 1 row of fuses that controls brake lights, dome lights, and cigeratte lighter. Even with no power to this circuit if I leave the battery cables hooked up there is a serious drain on the battery within 2 hours it is dead.I have since used a jumper wire to go from the rear window defogger to power up the row of fuses that has no power so I can drive the car.I am trying to trace this problem down myself since I do not have a lot of money for repairs but I am not much of an electrician.I have checked all the fuses both in the car and in the firewall realy control and they are good.I am suspecting a fuseable link bad but how do I find it if that is the case?Thanks for the help.