<<Was 05 a 'talkdown' appraoach ?>>
Being very young (!), I don't know if PAR was ever used on the subsidiary runways but certainly SRAs were employed, as windowjob mentioned. There was never ILS on that runway.
***I've found one piece of info: Runway 23 was permanently withdrawn from use on 27 October 2002. The last movement was SAA Boeing 747 ZS-SAU, which landed at 0746.