If you use Acrobat 8 but not Adobe Creative Suite, you can gain access to the full Version Cue feature set by participating in a shared project; that is, you can gain access if another user on your network installs Adobe Creative Suite and gives you access to a Version Cue project in a Version Cue Workspace.
If you use Adobe Creative Suite, you have access to the full set of Version Cue features, including Version Cue Administration.