I got the programmer direct from the supplier in Thailand via EBAY but due to the troubles out there at the momemnt, I have not been able to get in touch with the supplier and the SIVAVA website does not have the latest software on it for download
You has better to contact them for the latest software.
On our download page you can get 0.97ja most common software. But if your chips are supported in 0.97ja, then you do not have to use latest software. 0.97ja is been used for years fo many chips.