jco, the person who had the frame before me did all sorts of things. Lye, PB blaster, trying to twist it out. Anyway, he cut off the seatpost, but way too short. He left like maybe 12mm of post sticking out. He tried to cut it out with a hacksaw but bailed. So I got it. I finished the cut of the seatpost with a hacksaw blade (takes a while, be careful not to cut the frame) and then what I did was seal up the frame and I poured ammonia into it and left it to soak for a few days. This eats away at the bond between the aluminum post and the steel frame. It eventually worked away enough of the bond that I was able to curl up the seatpost inside the seattube and pull it out (with vice grips). I was a little too hurried and I put a little dent in the seat tube, but I think I could fix it if I was inclined. Nothing structural. Thank you for the donation offer, I hope it works out for you though! Everyone says these bikes ride great.

Zaph - Well, maybe it's an Inter-10 then! I'll put it up when I get home. The guy who gave it to me was really reluctant, and when I told him I got the seatpost out he refused to even sell me the fork. I believe he parted out the whole bike. It's too bad, since I bet if he wasn't upset about it he'd tell me what it is.