#1
so the tab

ttp://www.ultimate-guitar.com/tabs/a/a_day_to_remember/if_it_means_a_lot_to_you_tab.htm

I don't understand when it says capo on 3rd fret but the chords used use the 2nd and 3rd frets. does this mean when the capo is on the chord would actually be played as if the capo was the nut so instead of the third fret it would be played on the 5th fret?
#2
The capo acts as "0" if I remember correctly.

So 4=1, 5=2, 6=3


You have the correct idea.




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