There's a button on the toolbar labelled "Database". Click that, and you can import/export all your graphics and sounds.
However, this forum has nothing to do with rpg makers. I sugggest going to
The RPGinfinity Forums to ask any further questions you might have.
The RPGinfinity forums might be chock full of newbs and people who are generally idiots, but they know what they're talking about when it comes to the rpg makers.