OK, just got the goods on the SCR from someone who reckons he may have been the last Cunard employee in there, just before he left the ship with the bosun in early December 2008.
The 2 Deck door is in the Port Side fore/aft alleyway just fwd of the pursers desk and just aft of the Mail Room & Pursers photo copy room. The door is ping-coded (i.e., has keypad entry only).
The 1 Deck SCR door is from the Stbd fore/aft alleyway right beside the fire locker, just as Louis said. Again, it's a ping-coded door.
Re the 'young fella' joining the forum - he thinks that because I enjoy it, it must be something only for 'older folks'. Cheeky bugger!
Telecom man arrived today to tell me I now had 'fast broadband' Told him I had already found that out last week, so he then doubled my monthly allowance.
Cheers
Skilly