If you need to move the agent to server communication port off of port 80 (the default) follow https://kc.mcafee.com/corporate/index?page=content&id=KB57779&pmv=print Corporate KnowledgeBase ID: KB57779 (Previous Document ID: KB45093) and then use http://www.boutell.com/rinetd/ (internet ``redirection server'') to redirect port 80 traffic to your new port. You do not even need to push a reinstall of you agents.
all you need to do is make a rinetd.conf file, add something like this:
0.0.0.0 80 192.168.1.100 22110
open a command prompt and run the server like this:
C:\rinetd>rinetd.exe -c C:\rinetd\rinetd.conf
Retrieving data ...