Greetings Mark,
Once you enable the SMSMSE product within SPC 2.0 you browse to the installation URL from your Mail Server, or you PUSH install the agent. (Which it sounds like you have done).
Prior to PUSH installing the agent you need to make sure you have uninstalled any other SMP agents on the SMSMSE Server, as at this time both agents can not be on the same machine.
Within a few minutes of a successful SMSMSE agent installation you should start to see data populating the reports.
There is a tech article at: www.symantec.com/docs/TECH161785 that has some additional information about exactly what goes on during the installation and gives details about application event log entries you may see.
I'm sure you have already looked at it, but it's good to publish a link to the SMSMSE Integration guide.
It can be found at: www.symantec.com/docs/DOC4594
Inside the guide can be found various troubleshooting steps.
Here are some other questions:
Did you notice any errors logged to the even viewer?
Did you have any AntiVirus or AntiMalware alerts produced during the installation?
(Which versions of AntiVirus/AntiMalware do you have installed on the server, if any?)
Were you prompted to restart any services, or have you restarted any services on the Server?
Have you rebooted the SMSMSE server lately?
Your best option may be to call in and log a support case with the SPC Support Team, or the SMSMSE Support Team. They would then be able to work with you to examine the systems in question, take some diagnostics information, and further trouble shoot, ( and even resolve :) ) your issue.
Regards