Which version of Windows did you manage to run them in? Most games here are for DOS, they may run natively in Windows 95/98 but newer versions are a different story just like Mac or Linux. Use DOSBox. There are tutorials in this forum, although they have a few Windows specifics, but you may easily be able to figure the Mac equivalent, especially if you read DOSBox's readme. There are also frontends to make DOSBox easier, for example for Mac:
http://boxerapp.com/