Please, i've looked everywhere and tried to find help, but I can't find it.
It's a key to succes, as it says...

The key to sucess is eating your vegitables

Go towards Guadosalam and you'll find him once again. Walk into the entrance of Guadosalam and you'll encounter Tolbi and his crew of workers. After a short conversation, he'll agree to help you and give you a Garment Grid for your trouble. Mission complete! Or is it? Once you have Tolbi on your side, make your way to his office in Guadosalam (it's underneath the entrance to the Farplane) and open the treasure chest there. You'll receive an accessory called Key to Success, a very powerful accessory for any of your characters, as it boosts attack power, hit points and luck, giving you a much better chance at dealing critical hits.

That's what I have to do to get the "KTS", but when the mission is complete you can't go further into guadosalam...You'll come to the airship nomatter what...
So what should I do...

You only get Key to Success if you completed all the Moonflow missions and I believe also the Macalania Woods stuff, but didn't stop the Ronso attack in Chapter 3. To get to Guadosalam, obviously just use the Celsius to navigate there and then head into Tobli's office. If you did well on the Moonflow, there should be a line of people waiting outside, so it should be fairly easy to spot.

Thx, I'll try that, but why do I have to do all tha Macalania stuff too?

Well, at least that of it that ties into Tobli --- i.e. when Tobli's helper asks you find the musicians.

Basically, if you have Episode Complete for the Moonflow, but you don't stop the Ronso, then you're good for Key to Success.

The key to sucess is eating your vegitables

Haha..very funny Banin..lol :D

Thx, again, but what is so funny about it?