Death_at_Midnight, very glad that you have not had any problems with Vista.  I work for Mediacom in the technician support department.  To this day, I have seen only 2 out of I can't even count how many Vista machines actually get onto the internet.  I am very glad that you haven't had any problems with that.  But for the one program, since it doesn't work very well in wine, and forgive me for not knowing so much about it, but does that use an NDIS wrapper?  As I understand it, the NDIS wrapper basically allows you to use microsoft programs in Linux by using microsoft drivers with it.  Or something to that effect.

Also, I have seen the Mac OS 10 work on a PC, without having to run it through some type of emulation like you have to do (or used to) to get Windows to run on a Mac.