The page you linked to links to the Prusa Mendel design, an ancestor of the Prusa i3.
The correct Prusa i3 home page in the wiki is here: [
reprap.org]
And btw, there is a specific forum for the Prusa i3 if you scroll down in the home page of the forum, in the Machines Specific section.
If this is your first RepRap build my advice is to buy a nice kit that got positive reviews either here in this forum or elsewhere. If you decide to source the parts yourself it will take longer to build, on the other hand you'll have the satisfaction of building your very own special printer... but be ready to overcome many challenges along the way!
Edited 1 time(s). Last edit at 03/11/2015 05:49AM by AndrewBCN.