Guitars expansion pack for Cakewalk Sound Center - questions

I'm not that interested in having the chords and licks, but I'm wondering about a couple things. "Acoustic Harmonics", "Harmonics", "Nylon 1",  "Nylon 2" , and "Steel String" - do the notes stop after high B or C like so many guitar patches do? Or do they give you some extra notes up there? For some of my songs, I'm needing the notes up to high E (what would be a 24 fret on the high E string). Also, what do you think about the sound quality? Thanx.