Try this:
Download the Windows version of FH again, then open it with WINE/WINE BOTTLER and choose "Convert to simple OS X Application bundle."
Go to the Advanced tab, and for template, choose "new prefix."
For program to install, choose the Feral-Heart installer you downloaded, and choose "This is an installer, execute it."
Then, at the bottom right corner, choose "Install."
After that, launch the newly created file and press Cancel for when the DirectX install comes up.
Make sure you create a little shortcut for the dock.
Once it's finished, right click on the Feral-Heart shortcut you made in the dock, and then:
Options > Show in Finder
This should take you to your FeralHeart directory. Find ogre.cfg and do the steps from earlier.