I am sorry that I do not have any advice but I am eagerly awaiting open beta for war and only have Linux on my PC. (I own vista ultimate but do not intend to use it). Have you tried with Codeweavers crossover games (I assume it would work pretty much the same as wine) and Cedega at all? Cedega has more (debatable) D3D support than Wine and might at least give different errors. I think they offer a trial version for download as well (I am a beta tester for Cedega, if I could have gotten into WAR beta I would have been testing and providing feedback to both Wine and Transgaming)
