Your BSZ is very old and was superseded by TAA40104. TAA40104 was replaced by TAE40110 and that’s now been superseded by TAE40116.
If you have continued to work in the industry – you may be able to apply for RPL, however, in most cases people who hold only the BSZ qualification have not been working as a trainer in the last 5+years and therefore lack currency.
Having the past experiences of your BSZ qualification will help you accelerate through your studies. You will notice many changes and improvements to the VET sector that have occurred over the last 20 years.