First download your self a copy of Real VNC and install the VNC server on each of the machines u wish to control. Then make sure u create a password on each, this is done by opening the VNC app, (double click on icon in taskbar)VNC Password authentication.
Then goto ARD3 and in the Scanner section add the ip or domain name/computer name of a computer to control.
Username :Admin
Password : What ever you chose
Job done, now u can control you pcs via your mac.
Use Remote Desktop Connection.
The installer should be inside one of the CREO software folders. Just intall it in any MAC and you'll connect dirently into the CREO.