According to their website, they operate B727s, B737s and a B767 - the BAc-1-11 seems to be out: actually, they began retiring those quite a while ago (in 2000 a CE
sales-rep told me that those would be gone soon), so I'd be very surprised if they were still around.
I suppose that they're probably using the B727-200s mainly on the JNB
routes, depending on the required capacity - I doubt that the -200s go to PLZ
too often... I wouldn't be surprised if they kept the -100s primarily for charters or backup, but it's really been to long since I've had contact directly with them, so I'm not sure: but this setup was what they were planning for around 2000/2001.