You could use Vmware converter http://communities.vmware.com/docs/DOC-8712
You don't necessarily need converter. Just move the all the files to your datastore, and then import the VM into your inventory. The VM you are importing is the .vmx file. Unless this was a VM created for a different platform, say Server or Workstation, then you would need converter. I belive you right click on the host in the inventory and choose import. I don't have it up and runnig now so i can't give you specifics.
Nemasis
Your discussion has been moved to the VI: Virtual Machine and Guest OS forum.
Dave Mishchenko
VMware Communities User Moderator