I've posted the link to the relevant tape, this is a rough transcript.
I've included the time of the first call on the tower frequency so that those who have heard the tower tape have some continuity in the time line.
Syd Center
7:52 - PGW - We're just turning round sir, we've got a few problems here
7:52 - Center - Everything OK?
7:52 - PGW - Not at the moment, we're just turning round to Bankstown thankyou
7:52 - Center - Roger maintain 5000ft, Richmond available if emergency conditions exist
7:52 - PGW - Standby
7:53 - PGW - We've got an engine issue, we've shut one down and returning to Bankstown
7:53 - Center - Roger, track back to Bankstown
7:54 - Center - Will you require any services on your arrival ?
7:54 - PGW - Not sure at the moment, just dealing with it
7:54 - Center - Descend to 2500
7:54 - PGW - 2500
7:55 - Center - Are you able to maintain height, if not Richmond 2 miles south of you at this time
7:55 - PGW - Ah, we're just on descent at this time… (difficult to make out exactly)
7:56 - Center - Bankstown advise services will be in attendance for your arrival
7:56 - PGW - Wondering if we can confirm 11C available?
7:56 - Center - Track Direct for 11C final, 11C available with two knots downwind
7:57 - PGW - Thanks do you have a heading for us?
7:57 - Center - It's a left turn by 10 or 12 degrees
7:57 - PGW - Left 10-12 degrees
7:58 - Center - Continue descent as required, confirm visual
7:58 - PGW - We have visual at the moment
7:58 - Center - Roger, continue descent as required
BSK Tower
8:00 - PGW - 12 miles to run, 1500