Go to http://www.plazmaburst2.com and register and then click custom maps, go all the way to the bottom of your screen and type an ID for your map. No spaces, symbols or parantheses. Then you will be sent back to the top of the page. Go back down again and you will see this. (username)-(map ID). Click edit next to it then you can name your map, set comments to your map, have it published to other people or not, and add a walkthrough video if you want. Then click edit map. You can always edit anytime you want. Just so you to know, for the floors, use "box" option.
http://www.youtube.com/watch?feature=pla yer_embedded&v=WvLWkYytFD8
