Well, I have found the actual web site where they sell the software... not some ebay seller...
Here is the direct link for everyone interested
You can buy and download directly... or order a CD copy. Up to you...
BTW they offer a small free program with a few Rife frequencies
In the meantime, I had to do my own research regarding amplifiers and such, since no one here is helping... Well, I have come to conclusion that a decent amplifier is crucial for achieving best signals.
Also seems like there is no need in DAC amplifier (google DAC if you don't know what that means). I also had to learn it.
I am currently thinking of getting a 2x25W TA2021B amplifier. It is quite affordable and should perform fine.
Will try to use my copper electrodes from a frequency generator first, but will probably also get large TENS electrodes as it is easy to connect them to an amplifier. Perhaps, I'll even get two stainless steel sheets 300x200 with alligator plugs and wires... Will see...