No there is no OS X version of the business modeler. If you want to run the modeler on your Mac please use VirtualBox (free) or Parallels (paid) for running a Windows image. Please use the search option of this forum for more questions about this topic.
Installed them all Running and deploying in Yosemite right now, works like a charm.
Does current versions still work on XP? I’m running 7 PRO on my virtualbox but sometimes the overhead of two systems kind of annoy me.
According to their specs windows xp is not supported.
In general virtualbox is slow due to a suboptimal rendering of windows.
You can try and improve this a bit by turning of visual effects in the control panel.
If you really want to run windows smoothly, my advice would be to use parallels.
Unfortunately this is not free, but it makes up for the lost time in productivity.