Web site help

[Korgoth]

Hi guys, I'm using a program called joomla! And I've made a graphic that I would like to use as a locked background/template for my website. I'm pretty novice, so any tutorial links and help would be great. Basically, I have a jpeg image, that I would like to add regular text overlayed, and buttons/urls to navigate.

Please, please help, I'm on a serious time crunch here. Thanks!