They're in the first post....
And I can't play guitar.
EDIT: Hmm.... I dunno if Koi no Kajitsu was transcribed for the guitar, but Koi Moyou definitely was. Like I said, I don't play guitar, never have (but really would like to), but I'm sure the people who do wouldn't mind having a copy. I dunno, I'll let them speak for themselves.
Hrmm... well. I dunno if I'll be able to transcribe their songs for the piano, because they're super fast. And I only just began amateur transcriptions (Marionette, a slow song), so meh.
I wonder if that score book will be available on YesAsia or....something. =T