For those mac users on Leopard (10.5), here's how to get it to work...
1) Make a folder on your desktop, on the safe side don't include spaces in the name.
2) In that folder put the files from BOTH the pc and mac patches (AND THE UNPATCHED ROM)
3) Open your Utilities folder inside your Applications folder and run Terminal.
4) Drag the file PatchSoma (which is inside that folder you created in step 1) into the terminal window and press enter.
A new file with the -patched extension to the filename is created. This is your translated rom.
The mac patch only works on leopard straight out of the rar, because the xdelta (compression) included is compiled on leopard. If you try to run the patch on tiger (10.4) or earlier mac operating systems you will get errors. The only way to fix that is to compile xdelta yourself on a 10.4 machine from the source, or find a pre-compiled version of it somewhere and replace the one from the rar with that one.