User blog:Liquoritz/How create an infobox?

WHen I try it's just not working like it is supposed to. Look at my sandbox: http://candy-crush-saga.wikia.com/wiki/User:Liquoritz/Sandbox/Level_type_layout - the infobox is not a box, the image is not working. The template editor has parameters that I don't know what it means... I suppose you need to learn a whole new language ("wiki-text"?) just to know how to create a simple box of information. How am I supposed to learn it when the "help" is written in that language I don't speak? It doesn't make any sense at all... I'm really confused right now.