Hello,
I realise this is fairly old post but I will answer nonetheless.
ESTEL-2D and ESTEL-3D are indeed not part of version v6p0 or v6p1. We are currently (EDF mostly) bringing these module up to speed with the rest of the system has mojor developments went into these.
These may be available agin from v6p2 but we cannot garantee this at this stage. In the meantime we will try to see if there is a wider interest for these module.
Kind regards,
Sébastien