Need Help Using RPG Maker

Not sure if there are any of you in this forum ever used RPG Maker. Basically I need a few pointers/input/help regarding RPG Maker program, because its my first time trying to use the program to make an RPG game. I got the VX and XP version (2003), downloaded both from the internet (full version). I've read several tutorials and view some youtube video for both programs. But there are still few things I don't understand as was unmentioned in any of the info materials I read/view.

My questions:

1. Is it possible for the RPG Maker XP's tileset/graphic set be cascaded like the RPG Maker VX (as shown in the picture)?
The cascade portion of RPG Maker VX are marked as A, B, C, D, E in the yellow box. How to do that on the XP version?

2. Is it possible to change the tileset/graphic set inside the red box with another set? How?

3. If I want to make my own tileset/graphic set what program should I be using so that I can achieve the same detailed
images?
I know Paint/Photoshop, etc. can save pictures in .PNG format, but creating such image using Paint/Photoshop can be
a painstaking effort.
4. Is it possible to make new folders inside the materialbase window? How?
I hope to separate the original materials marked in blue from the imported materials marked in orange.

Seems like no one ever used RPG Maker before. Anyway, I've found the solutions by myself, took me awhile to figure everything out by myself. Turn out its not too difficult to work around the program.