On a newly installed cell server, you will have 60-days of temporary licenses. You can run virtually anything during this period. You can also take that 60-days to obtain new licenses based on the new IP address
If you are just upgrading your current cell server, and the IP address is not changing, your existing licenses will still be good
Licenses are kept in the folder
Program Files -> Omniback -> Config -> Server -> Cell
there is a file named 'lic.dat' which contains all of your licenses