Multi-streaming

Hello,
Few weeks ago I started using openSuse again but for the first time I’m trying to absolutely leave Windows. I got many things up and running like some games on Wine. My problem is that I got one ear head phones with microphone and It’s not a problem if I can separate Skype from other sounds. On Windows it was simple. I had just to tick Multi-streaming option in Realtek HD Audio panel and I got front and rear sound panels work as 2 different sound cards. I remember that I done that on openSuse 11.2 but I don’t remember how I did that, anyway I know it is possible. Anybody got any ideas how to do that? I use PulseAudio and Xine.