The CSS is not a DFP Agent, It acts as DFP manager only.
Cisco does not supply DFP agent software to run on the servers.
You will need to enquire server manufacturers to find if they support DFP and have DFP agent avaiable.I am afraid there arent many available. Better alternative is available with ACE where you can use SNMP based probes.
An open source DFP agent for Apache can be found at
http://dfp.berlios.de/
Syed Iftekhar Ahmed