help with a winchester model 150..

[JD0608]

i have a winchester model 150 lever action 22cal with a broken firing pin.. i have took the bolt out, knocked out one pin i thought was holding the firing pin in place but i still can`t get the firing pin out. any of you guys ever had one of these guns apart. i think the firing pin for the winchester model 190 should be the same so if you`ve had that bolt apart it should help also..