Hi, We are in the process of setting up EPO 4.5 in our organization. We had installed version 3.6 but somehow it wasnt configured completely therefore we started from scratch and installed EPO 4.5.Currently we dont have any policies or tree set up. Following are the concerns I had (a) All of our client machines have McAfeeVirus scan 8.7 installed. However they are getting updates from the McAfee server not the EPO server. How can I point the client machines to look at EPO server for the mcafee updates (b) When we had EPO 3.6 installed some of the client machines had client agents. I am not sure what version of client agent are they running. How can I centrally upgrade the agent to 4.5 using EPO? (c) we have a total of about 80 machines in one site. Is is better to go with Active Directory structure or create groups based on IP address of machines?