Should work. Is it the commview that sits on a PC and a SQL database? I would go right to CommView and ask them. Just email their technical support guys. They are pretty good at getting back.
The structure of CCM 3.x to 4.x is different. So Im not sure if CommView needs to be updated to see the new tables and pull the data. In CCM 5.x, all files are FTP'd out to a remote location and then Commview picks those files up