was the 2001 different than the 04? The 04 has cartrige bearings in frame, and needles in the links. In general the best way to replace needle bearings is to push the old out with a new one. Pretty easy process with the swing links using an arbor press. A vice can be used, but is harder to align because everything is on its side (fighting gravity). If your frame has them, then it could be more hassle just because you might have to tear the bike down to manipulate the frame on a press.
I'd suggest your best bet is to call Turner. They should be able to provide you with exact instructions, rather than just a bunch of speculation on the forums....
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