Hi
It means you need to update the server and client before those dates. I didn't realize the client was expiring so soon .. will have to push out an update today.
There's also no purchase of the software .. please see the license here http://www.compkarori.co.nz:8090/Licensing
And yes, there's no difference between the premium and free clients. Never has been.
Graham Chiu
Beta Downloads and Documentation Wiki