First open the license file in notepad. Check the mac address of the server and compare to the line in the license file "HOSTID=xxxxxxxxxx". These two must match. If not, contact licensing@cisco.com
When you open licensing, under Action, Install License, do you see the license file that has been installed?
Do you see 13 ( 8 + 5) "REALSPEAK sessions"? If yes, then the license has been installed succesfully.
H. M.