[Infinity]

The tutorial is pretty bad, actually.
You call it a super simple guide, but the steps are, mildly put, weird.
You either state the over-obvious things (downloading it from sa-mp.com) and completely ignore some of the more 'difficult' steps, such as setting up the config file.

Furthermore, your port-forwarding guide is quite useless, as not every router's software looks and works the same.