If Simple Client and Server are not running or seeing one another, then something is wrong and nothing will work, or you don’t have the system specs you need to run Syphon.
Are you on 10.6 + ?
System specs? Errors when launching Simple Server and Simple Client?
http://syphon-implementations.googlecode.com/files/Syphon%20Demo%20Apps%20Public%20Beta%202.dmg