Ok, I bough them and downloaded them.
They are .sh files. How do I run/install them.


Ok, Found the solution.

1)First of all, download the file that you are going to execute e.g. "name_of_file.sh" and save it in your Desktop

2)Secondly open the Terminal from Menu  Accessories  Terminal

3)Now type cd ~/Desktop (With this command we change the default directory "/" to "/Desktop")

4)Then type chmod +x name_of_file.sh to make your file executable.

5)Then type sh ./name_of_file.sh to execute the file.

6)After that continue as usual.

Seems to work. I HATE mucking around in terminal..

I cannot run the .sh installer or start.sh file, help!

There is a much easier way to do that on mint. Right click the file and on permissions check the "run as executable" box. (or something like that I am not on linux now.) Then you can run the file just by double clicking.