US dont want to help Russia fighting the people in Chechnya (go to your local chechnyian immigrant and ask him about the genocides in Grozny) because altho the cold war is over Russia still is being governed by the hand of a former agent of the good ole Soviet. So, helping the russians in hunting chechnyians would not just be pointless, they (US and A and Bush) would not gain anything from it. Well, a few good words from Putin maybe. Altho russia do have some major gas and oil resources beneath its feet. And besides, if some "western" country do come to aid Russia in their fight in Chechnya, then they must adapt their troops to the human rights laws and stuff... which they at this moment dont give a shit about.
And since this war has been going on from october 1994 (200-250 years if count the overall time) and most of the world dont know a shit about it... well I think that's how Russia wanna deal with it.