This is what I did (third post down) and it works like a charm- no binding, and I can still use the original cups if I want:

http://www.bikeforums.net/showthread...958&highlight=

Your BB is binding because the shell is 26 TPI and the BB is 24 TPI. Plus your shell width is likely 70-71 mm and the BB is made for 68 mm shell width.