Finally received a reply from CAMRA, after enquiring if they might know of the pub.
Thank you for your email which has been passed on to the local area to see if they are able to offer any help or suggestions.
Kind regards
Nicky Shipp
Reception and Membership Administration Officer
CAMRA...
I emailed Janet Pennington yesterday, about this elusive pub.
She is a local historian and agrees that it could be The Stadium pub, that used to be on the corner of Holmes Ave and Old Shoreham Rd, which is know a Co-op.
She is local to Brighton, and her father used to an Albion supporter...