Wine is good but the link you got will leave you absolutely confused. Just download this http://winebottler.kronenberg.org/ and run the windows exe on mac. It is a version of wine for mac that is easy to use.

install window mode on your mac and pray to god it will work.

google window on mac for more information

there is a program called "Wine", it works on any os

beware, it uses a lot of resources, but works perfectly

http://www.winehq.org/