When I click the install link, it says no avalble files for down load?
The files appear to be present for me.
If you click the red download now button, pass the donation pop-up, there should be two files available to download. One for PC, the other for Mac. Download the appropriate file, extract it to the desired location and then run the exe file.
I'd like to help you if I can, at what step are you receiving the no available files to download message?