1) You are most definitely in need of AP desperately if you can't beat Don Tonberry. :rolleyes2 What I hate is when people ask for help beating so-and-so, but don't post their stats. But yours are obviously way too low, or you'd be doing V9 damage a turn and wouldn't have a problem. My advice? Raise your stats to the 200+ range. kthxbye.
2) Need to beat Don Tonberry? What for? It can't be for AP, or you wouldn't have made that last post, or for bragging rights, as he just isn't that great.
3) Well... read rubah's post again, and try to make some sense of it.