Whoa, I'm sorry if I have started a whole Apple/Microsoft debate, that was not my intention! That was just supposed to be a funny sidenote, a little tongue-in-cheek since I had the impression that even many Vista users aren't completely convinced of the quality of their product, I certainly didn't mean to challenge anyone's view on operating systems or even start an OS war! Should I have done so, I would be more than willing to edit that out of my original post, and a mod could delete all the posts not relevant to this thread.
Anyway...
cant you just use WINE?
The Mac distribution of Wine is called Darwine, and I usually use it to run Windows applications - however, there are many programmes that won't work, at least not on my computer (OS X 10.5.8, 2.4 GHz Intel Core 2 Duo, 4 GB RAM) with my version of Darwine (1.1.19), if that makes any difference at all.
Typical errors are the following: sometimes dll or mfx files are missing, sometimes it is not able to display the interface correctly, or some functions are missing, like the fullscreen function in KS, or "unexpected errors" happen which shut down the whole application. Saira is one of those games that won't work. I could retry it to see what kind of error there is, if you are interested - I'd just have to download the demo again, but I'll get back to you.