Music Transposition

I think this is all of it...More may be added later ;)

Needs to be lowered by 1/2 step
Chord in book: Csus2
Chord I have: Cbsus2?
Chord in book: G6/9
Chord I have: Gb6/9?
Chord in book: Gsus2
Chord I have: Gbsus2?
Chord in book: C6/9
Chord I have: Cb6/9?
Chord in book: Fsus2
Chord I have: Fbsus2?

Needs to be raised 1/2 step
Chord in book: Bbsus2
Chord I have: Cbsus2?

Lower by 1/2 step
Chord in Book, Needs a transposition: C(#4)
Chord in Book, Needs a transposition: D(add4)
Chord in Book, Needs a transposition: F(add2)
Chord in Book, Needs a transposition: C(add2)

Raise 1/2 Step
Chord in Book, Needs a transposition: C(add4)
Chord in Book, Needs a transposition: Gsus2
Chord in Book, Needs a transposition: C(add2)

These are from J's songs.  The song books that they are in altered some songs by 1/2 step either up or down for playability and I prefer the original key.  I'm slowly teaching myself guitar and figured out most of the chords that have been changed.  Any help would be appreciated.  The ones w/ question marks I'm not sure if they are correct.