I am looking out here in the communities to see if anyone has developed a test plan for there business to upgrade EEPC from v5 to v6. If so, any possible way you could post a general view of what you have?
I know this reply is a little late, but my organization made the decision to go from EEPC 5.2.5 to EEPC 6.1.3 + HotFix and I developed a test plan to help facilitate.
First determine what it is you want to test and then it is a lot easier to go from there. The idea is not necessarily to test the functionality of the program (you have to trust that McAfee did this for things like sending/receiving policies), but instead test to make sure that it works in YOUR environment. I chose the following order
Put it all into a nice spreadsheet and track your Pass/Fail rate along with any noted deficiencies and you are good to go.
Hope this helps!