openPHT installation on Linux Ubunto 14.04 LTS

Hi there
I am trying to install openPHT on my father in law’s laptop which has a clean install of Ubuntu 14.04 LTS.

Question, how do I install openPHT onto this system??

I tried the *.deb downloads but it doesn’t work.

tried this as well.

It seems that I have sorted the problem by installing a later version of Ubuntu, however, with the constant background changes in openPHT the screen seems to go ‘crazy’ and flickers constantly making it impossible to use. Any suggestions?