OK by default the site gave you the windows version. That is OK. Stuff like that
happens in this world. However, we need to prep up your system to build from
source. So goto Applications>Accessories>Terminal.
Now copy and paste this command from here to the terminal.
sudo apt-get install cvs subversion

Here is the link to help you build from source.

https://help.ubuntu.com/community/CompilingEasyHowTo

Now we are ready to go to the next link. Remember the copy and past method.

ubuntu-tutorials.com/.../