Can someone tell me what the 'sus' means? They post the tabs but can't find anything on 'sus.' I'm new here!

Sus is short hand for suspended, so you would read the chord as C suspended 2nd or C suspended 4th. Basically this means that instead of your regular 1-3-5 triad you would have a 1-2-5 or a 1-4-5. Pretty much any worthwhile chord generator should have some voicing for these but if you're having no luck, here's pretty dependable link.

http://jguitar.com/chorddictionary.jsp

Actually that would be the RIGHT side

Traditionally these aren't really chords but non-harmonic tones. A suspension is a note held across two chords that resolves downward during the second chord. A 4-3 suspension is a fourth above the bass note resolving to a third above the bass note. A 9-8 suspension is a ninth (or second) above the bass note resolving to the octave or unison.