Drivers for Multipoint Server 2012

I would like to know when the final zero client driver for multipoint server 2012 will be available. We are currently installing 60 E02 with MPS 2012 and using the beta driver. We tested the beta driver on the RTM version of Multipoint. First we couldn´t use the station.dll from the beta, then we installed the beta driver but have a problem with the sound, the sound of all stations was only heard in one, I suppose is a problem related with the station.dll or the driver itself. By the way, we tested MPS 2012 with more than 14 e02 stations (20) and it worked fine, we had the sound problem only.