Nope!
It was definately the seal that was stuck in the fork I had problems with!
Water passing down through the dust seal and sitting in the area between the two seals caused corrosion.
The bush was well lubricated by the oil in the forks.
The bashing the bushes took whilst trying to seperate the fork did damage them, as mentioned earlier.
I wouldn't want to heat the aluminium leg with a naked flame. I'd use an electric heat gun.