Hello Dwigt;
I'm sorry but what you want to do is no longer an option (mstsc /console), going back to XP ServicePack 3. Microsoft's big push for more security decided that this was a potential vector for an attack and decided to plug that hole. So it looks like two sessions is going to be it the console always holding on to session 0 and the remote taking the next.
This article may explain it better but I think thats pretty much it in a nutshell.
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