Apologies if I was not clear, what I was trying to say was that you need to have an Enterprise version of vCops to use the View adapter. If you have only licensed it for a lower version then you cannot use the View adapter and I guess it will fail to find an Enterprise vCops server.
With regards to supported versions, as per the release notes for vCops for View 1.0.2, this now supports vCops 5.6.0 (this only came out on 24th Jan 2013)
https://www.vmware.com/support/vcops-view/doc/vcops-view-102-release-notes.html