Hi Elaine, please have a look at OCAL Helper: http://developer.berlios.de/projects/ocalhelper/
It seems it is currently only developed for Linux and Win32, but since it's written in Python, it might also run under OS X. If it doesn't, you can send a feature request to the author. If you have downloaded the SVG + PNG OCAL version, you should be able to view at least the PNGs with any image viewer. Cheers, Christoph
