Difficulties linking two machines using Keyclone and Synergy

This might be really stupid and if it is, I apologize. I've been using Keyclone to multibox two characters, however I've recently decided to add a third. Running three instances of WoW on my PC is more than the poor thing can handle, so I've decided to use one of my Macs to run the third client on. I did some searching around here and found a post that recommended using Synergy with broadcast to send the keystrokes from the PC to the Mac. I went onto the wiki part of this site and downloaded Synergy with broadcast. I can't seem to get it to work the way I want it to, however.

The only thing Synergy is doing for me right now is allowing me to use one keyboard/mouse for the two machines. It works perfect in that respect. If I move my mouse on the PC all the way to the right of the screen, it switches focus/control to the Mac. That's not doing me any good with that third client, though. I still have to manually control it since keys I press on the PC aren't being broadcast to the Mac. How exactly am I supposed to set this up?

My screens and links:
0 to 100% of the right of pc goes to 0 to 100% of mac
0 to 100% of the left of mac goes to 0 to 100% of pc

Presently, the way I'm doing it:

PC: (Keyclone)

• Client 1
• Client 2

Mac:

• Client 3

What am I doing wrong here? I wish there was a Mac version of Keyclone :(

Well, afaik Synergy doesn't copy the input,
it only makes you use one mouse and kb for both machines.
So it's "working as intended"

I'm not that experienced with macs and boxing,
I wish I could help you further on your way

this is correct, synergy is NOT a multicaster at all.
You will need second application to actually broadcast your keystrokes. Unfortunately, since boxing is such a nitch market, I do not know of any software that will run on a mac to broadcast with. I have looked. My mac is my web/comm platform now.