I've heard that FFV Advance has new jobs...
Is this true?
If it is, tell me where i can find them, please.

So much for naming the new ones...Some of the new ones are in the list of jobs in the new refined game, but here are the extras:

Mime - Never used it.XD I heard it sucked. But...to get it, you need to talk to Cid and Mid in their base on Crescent after the Fork Tower falls (That's when you get Flare and Holy). Just take your airship and get into the sea base. You need to go a bit further this time than just the bridge, but just keep going through the doors until you see Cid snagged on a gear. Save him and then he and Mid give your airship submarine capability. Once you get it, just immediately dive into the water, doesn't matter where, and pull up your map. Inside of a huge circle of water on the map, you'll see a shining dot on the edge of it. Head up there and dive into the large circle of water. Just traverse around until you get to the shining dot as marked on the map. Just go over the tower to enter. Get out of your sub...once you enter, the whole place is just underwater (that should be obvious), but the entire thing is filled in, so you have to hold your breath. Bartz claims he can hold his breath for 7 minutes, so that's how long you've got to explore. But...you soon realize that this is the Water shrine, so just backtrack like you slightly remember it, and get to the bottom, where you'll see a shard. Go up to it and press A to get into a fight with the Famed Mime Gogo...From there, I don't know how to kill Gogo, since having Meteor cast on you four times in a row with no downtime is a little hard to survive and kill Gogo. Thus, I'm still working on it. However, that's the Mime.

Gladiator - Found in the first room of the Extra Dungeon after you kill Neo Exdeath

Oracle - Found in the first room of the Extra Dungeon after you kill Neo Exdeath

Cannoneer - Found in the first room of the Extra Dungeon after you kill Neo ExDeath

Necromancer - Given after establishing certain circumstances in the Extra Dungeon...of which I do not know, since I have yet to kill the Grand Aevis guarding the second area.

I know for a fact that the Mystic Knight and Chemist are new...and that the Lancer was changed to Dragoon....but I'm not sure. Anyways, those above are the classes you have to go scavenge for by yourself...of which, I'll recommend the Gladiator class (Faris' Finisher Elemental move pays off often...Plus, Faris and Bartz look awesome in the Gladiator costume).

Iirc Chemist was in the version for PS, so technically not 'new' lol... I might be wrong

Mystic Knight and Chemist appeared in the SNES version. So neither of them is "new"

The whole Lancer/Dragoon thing depends on which version of the game you have. I'm pretty sure the emulator version has Dragoons. At least, mine did.

I donno what you guys are talkin' about, but this game has always had Dragoons, Mystic Knights and Chemist' when I played it =/

Well Gladitor and Neocromancer are the new ones i think