Software issues in MS based VMs

I'm not sure this is the proper category for this. I am evaluating the beta for RHEV 3. We have a few Virtual machines installed (Win XP, 2008 R2 (both standard and datacenter)) and have been having issues installing our antivirus product we use for MS computers. (Sophos) I know the package is good because it has been used on physical machines. The install essentially hangs when I run the executable in one of our VMs. What would I need to provide for diagnostic information? I have not really found anything helpful in the log files for the software or the Windows event viewer.