Looking for help tweaking CSS for a nav bar

I'm trying to tweak a CSS script from CSS Play (http://www.cssplay.co.uk/menus/flyout_wall.html) to suit my needs, but for some reason I'm having a hard time making the vertical items go horizontally. I've tried putting "float:left;" in my LIs, but nothing seems to help. Right now, it's just a mockup, but you can see what I mean (using their example images for illustration only) at my site (http://www.deepwaterchurch.com/prelive/nav). If you mouse-over "Home" (and the space below it) you'll see the sub-menu items. i'd like to make the sub-menu's pop up when you mouse over the items at the top of the page, horizontally; not vertically. Any help would be MUCH appreciated. Thanks so much.

Maybe try the PAID work offers and requests section? there you could get one made from scratch

I really don't recommend that menu. Sure it will work in IE without javascript but the way its coded isn't entirely correct coding. Have a look at this tutorial http://alistapart.com/articles/dropdowns/