Does anyone know where to train in FF2 I'm in the jade passage and my lvls won't go up. They are all around lvl 10 and 11. Can somone help me.

You mean your weapon levels?
Chances are the enemies your facing aren't strong enough to gain weapon experience from. I dunno really o_O. *coughthisisnotaspampost*

yeah i mean weapon lvls but right now I'm in the Hell castle Pandomium or whatever and they don't seem to go up.

Your weapon levels are too high to go up easily. You would have to use it several times in each battle to get any experience. Using weak weapons will help as you'll have to attack more times per battle. Although you don't really need them any higher than 10 or so to beat the game.