IS that a 2000 model or a 1999?
The 1999 has a Shimano BB-LP27 110 spindle length with a 68mm English Bottom Bracket.
And the later models (2004+) came with a CH-52-68 Cartridge BB, also a 68mm. Hope this helps.
If you have the tools you could always just see what model number is on the BB and re-order the same model through your LBS?