Hi, snm1502:
Verify the configuration for your upgrade policies of the agent and the plugins: They may be configured as "Run ONCE" or something similar (I don't have them in front of me in this moment)
Take into account that if you have ever run this policy in your agent (may be for updating from 7.1 to 7.1 SP2), the agent will not run again the policy while it is configured this way.
I can imagine two solutions:
.- Change the configuration of the policy to run at some moment (in two hours time, on Mondays morning...)
.- Clone the policy into a new one: as the new policy has never been executed on your agent, it will run.
Just my two cents ;)