The search engine sucks and there is a cut-off date for availability, going back. The plus point is that the latest reported judgements and more recent legislation are available.
Earlier than that, you will either have to consult the SA Library on foot or Juta/Butterworths and they charge for access.
It is disgusting, primitive and unacceptable that there is no free internet access to complete records (and indices) of SA judgements and legislation. What do the law faculties of the the Universities and the Law Societies do?
The Government does provide access to many legislation but this is to individual Acts (ie not the consolidated legislation). You will find (for example) the National Consumer Act and all the amendments but they are too lazy to incorporate this into a consolidated version of the Act as currently applicable.
If you know what you are looking for, it is possible to find consolidated legislation kept up to date by some government departments and private bodies.