The crew rest capsule the same. This is difficult, for we assume it was holding the Captain, and perhaps one or two rest FA's. How did it come to be found?
The structure found is the Cabin Crew Rest Module. It is in the belly of the a/c, mid-section and sleeps about six if I recall depending upon the installation.
PJ2 is right about the crew rest. It's the CC Rest that has been found, and is indeed located in the belly, about mid-section (sleeps 7)
The cockpit crew rest module, depending again upon installation, (how the airline ordered it), is either behind the cockpit on the starboard side just in front of the Business Class Galley, with two bunks laterally mounted and about 18" width between the bunks and the cockpit wall to stand and change in, or the crew member takes a business-class seat reserved for the purpose, usually a single window seat, puts up a velcroe-mounted tent which fastens around the seat and from the overhead bin structure, (and tries to sleep through the flourescent overhead lights which aren't blocked, and/or the cabin service. Best break time is the middle one when no service is being done).
The Cocpit Crew Rest (bunks) is indeed behind the cockpit, starboard side. But it is not in front or anywhere near a galley. In the 330 and 340 the Business Class galley is between the doors 2, not 1. It's perhaps the quietest place in the aircraft.