Ola Hesham!
The link which I posted is all Mac 64 bits installers, Blair is working in the PC versions, they aren't released yet, you will need to contact him, to use a 64 bits Mac plug-in, you will need to re-create from scratch, adding the plug-in in the project and re-typing all parameters again, I doubt you will be able to create the project in the Mac using the 64 bits build and trying to render in the PC farm using the old builds, it will not work.
Thanks
Tom