IIS SNMP Values

I have installed the free version of Applications Manager, and have successfully setup a Windows 2000 Server monitor, with SNMP to gather CPU, Memory, processes, etc. However, I have also setup a monitor for the IIS service on the same box, and when I view the monitor I see the message:

"The Website Statistics is available when you monitor the host where IIS Server is running in WMI mode. Click here to change the mode."

When I click on the "Click Here" it asks me for the SNMP information of the W2000 server monitor again, I enter the information, and it updates the W2000 Server monitor, however, when I then go back to the IIS monitor, it just gives me the basic monitoring information (response time and availability), and the same message as above.

Is there something else I need to setup in order to get the SNMP information of the IIS service? Any help would be appreciated.

I am running the latest build (7200) downloaded on 3/1/07.

Craig