please help and explain exactly how to select Akuma, Dan and M. Bison? I've tried faqs and codes from gamefaqs.com but i can't get them to work? maybe there were some changes in revisions or whatever... thanks

I didn't try actually entering the codes but you can pick those players using the cheat.dat from pugsy. Scroll down the cheat list for that game and you will see where you can set the player.

yeah but cheats do not work in netplay over kaillera, we use it for some lan games...