If you've got Windows installed on your mac, you should be able to run the pack I uploaded (you'll need Java I believe, but it your windows being x64 won't keep that from working, just download the correct version). Once you're in windows, download java, and my pack (
Multiupload.com - upload your files to multiple file hosting sites! has mirrors of it), and follow the directions for Windows in the how to root post. Just make sure to keep the case of the commands correct (if it's lower case, keep it that way, if it's mixed case, keep it that way, etc).