Front Cover Oil Seal, how to remove it?

I have my timing cover off, and got a gasket set for it. However, I can't figure out how to get the seal out of the cover so I can put the new one in. I went to autozone to return the damper puller I rented, and I asked if there is a tool to use to remove the seal.... as is shows in my manual.. and the guy told me he just uses a screw driver to pop it out. I tried that and I can't seem to get it. How do I do it? Or do I need to get a seal puller or something?

Ok, I think I just messed up my timing cover with this method.. Ok, looking from the back I see the rubber seal there... and there is a little metal lip where the seal is attached. I tapped on that and all it's doing is crumpling the metal. I ripped the rubber seal part off. Then I flipped over the cover and I don't see how there is anything relating to the new seal that I have. It looks to me like the new seal pounds down into the timing cover... and this metal lip that I'm talking about goes up into the back of the metal part of the new seal and thats what stops the seal from just going out the back? Am I totally wrong here? Am I missing something? I don't want to pound on it anymore and mess it up, if thats what I'm doing. Or is the hole in the timing cover just supposed to be an open hole, and the new seal pounds into it? I hope I didnt mess up the timing cover b/c I just had one of the bolt holes welded up and I just got done drilling it out and retapping it. I dont want to have to scrap the cover for a new one now... Please tell me I didnt screw it up?

Whew! I had a heart attack for nothing! After I posted this last night, I went and looked at the seal again. I realized on the front of the cover that the tab running around the outside of the hole where the seal goes in is actually part of the seal. I put a screw driver under it and pryed that ouside part of the seal up and then pounded the seal out from the back. Not really that hard after I figured out what the seal really was. I was just panicked because I thought I crapped up my cover for the second time! Whew, relief!