Now, the chords at the bottom arent labeled very well.
They are labelled as standard, if you presume the order of the strings (from top to bottom): E, B, G, D, A, E
I cant even find the versions of F, G, and A they suggested.
How many strings have you got? They are played using the "bottom" (bass) three strings, E, A and D. They are "power" chords and should really be F5, G5 and A5.
How am I supposed to play chords like Amin, where it has 2 fingers on the 4th fret?
How many fingers have you got?
3rd fret, B string: index finger (1st)
4th fret, G string: ring finger (3rd)
4th fret, D string: middle finger (2nd)
As a beginner you will probably find either:
a) the ring finger hardest to get a note from, as it would be on the fret (causing a muted sound)
b) the middle finger hardest to get a note from, as it would be too far from the fret (hear the string vibrating against the fret)
You'll need to learn a bit of finger flexibility to get the two fingers in such close proximity!
(The fact that this chord is actually [Bm], Bm3/F# or F#aug5/11 (Bmin not Amin) is besides the point!)
Am uses the same finger position as the E chord, so it is good that you are learning this chord early on.
Sorry to sound patronising, but I think you could do with buying a very cheap "learn to play" book (10 pages will do!) - this will give you all you need to learn the very basics.