Well you may also want to check out emutalk.net,alot of people may be able to also help you there besides here.Give glide64 a try with evoodoo wrapper,rice's plugin,jabo's video plugin,for audio try one of azimer's plugins,i have never tryed this game so i don't know how good it will work.
Both Rice's Video or Glide64 do pretty well with the game. There are some glitches in the 2D graphics, but nothing that makes it unplayable. Direct64 isn't too bad either, execept for the boxes that appear around all the 2D objects. Any other plugin you try will give you incredibly annoying flickering. For audio use Azimer's 0.40 Beta 2 with syncing turned on in the options and you should get good results.