Cannot get Atari800MacX to work on OS X 10.8.4

Greetings, everyone!  I'm having a difficult time getting Atari800MacX to work here on OS X 10.8.4.  Is it even possible?

I have the necessary ROMs, but they crash on me upon attempting startup.

I've tried both ATARIOSB.ROM and ATARIXL.COM.

Here is the error message I get with ATARIXL.COM:

The Atari800MacX Emulator has detected an unrecoverable error.  Please select ColdStart or WarmStart to attempt restart, Monitor to enter monitor, Eject to eject Cartridge or Boot Disk, or Quit to exit the emulator

And here is the screen capture from the crash:

Thank you in advance for any help you guys may be able to offer!

-Rafagon