Hi Julian, what error message do you see when installing VSE locally?
I was running VSE880.msi on the client machine and partway through the progress bar reversed and the installation reversed itself. I have now removed all references to mcafee in the registry and manually deleted all mcafee folders then run setupvse.exe and it worked (VSE880.msi still failed). That then allowed EPO in install the agent and all appears OK.
All a bit of a performance!