make a PC program into a mac program

You'll have to use software as Parallels, or VMWare. They let you run Windows on top of OS X. This way the programs will run natively, with minimal performance loss.

The two I mentionned work the best, but there is also the free option of Virtalbox. Note that this kind of virtualization software requires a valid licence of Windows.

 

Check out wine: http://www.winehq.org/

 

You could also try Virtual Box http://virtualbox.org
It's free. A lot of people like it.
Do a search on it with this http://mroogle.*************/