#2
at 0.33 thats just a C, to G, to D to an Em. He's just mucking about with them.

Pretty basic chords to be honest, the first few you should of learnt.
#3
really basic chords man. you shoudn't be looking into buying a new guitar if you still can't recognize c, g and d...
#4
Mmm. How come it doens't sound like these chords on mine then? Is it tuning?
#5
Well he's technically playing a Cadd9 to G, then the D and then back to the Cadd9, G, and Em7. So if you want to play it properly, play those chords,and if you don't know them, learn them. They are't hard and not much different then the original C and Em, in fact the Cadd9 is basically the same placement as G, but your pointer and middle fingers are moved to the A and D string respectively.

Cadd9
3
3
0
2
3
x

Em7
3
3
0
2
2
0

Pretty simple