I have a picture and I want to put it tiled on my Quizilla homepage, and make it so I can write over it, but I can't figure it out. If anyone can please tell me how I can make it a fixed layout, that would be great.

.... I suggest you read up on background properties.
[ http://www.w3schools.com/css/css_background.asp ]
[ http://www.createblog.com/forums/index.php?showtopic=61624 ] <- Last post.

theres a resource page here somewhere on how to make layouts. once found you're on your way..!