I was wondering the same also... how to install? I don't like the site very much because it is missing some key points such as a document for how to install the whole darn thing. The project is very confusing (specially without any help document). However, I found a shell script at http://davedina.apestaart.org/install/ which seems to answer some questions.
The shell script basically gets (wget) the RPMs from the website and then installs them using the RPM -Uhv command. Since these are RPMs, I suppose they were created and possibly tested on Redhat system. These can probably work on Mandrake also.
There is also some sort of install disk for Redhat 7.2 as mentioned here .
If you're more interested in the project, be sure to ask questions to the project lead directly. I'm sure he/she wouldn't mind answering your questions.