There's a new version of War2Observe that fixes the crash issue, download from the downloads page today!
Yeah, I have a pretty big street fighter collection on Dreamcast, it is the best system for playing SF games IMO. Atari is too old for me, NES I didn't like, sega far better :-)
ill see if i have one, but i probably thrtew mine in the trasdh as a show of loyalty to war2