JACK with Synfig 1.3.4

Does anyone have any CLEAR instructions on how to make JACK work with the latest version of synfig? I Can not figure it out for the life of me.

I forgot to mention, I am running Windows 7 64-bit

Jack under Windows is not supported the same as under Linux/Mac.
Please refer to Jack’s website or (even better) use a virtual machine with a Linux guest.