DAMANGAKA'S PROFILE

Hello, I'm new to this forum and clearly new to this Program I found
I was really excited to find it first: finally, I could make that Mythical Magical Legends - my planned RPG - could come to life
But sadly, I don't know how to start or even make an opening scene @@;
Can somebody guide me in using this program.
Also... is it possible that in RPG maker XP you can enable your characters into having different 'jobs' and switch them without changing the element (kinda Final Fantasy-ish)
Thanks

~ Da Mangaka