lakedawgs,
I have that same aquarium and ran into the same problem.. if you take the light assembly apart, you will notice that it holds a two light adapter (a t of sorts, you'll see what i mean) so it already comes wired for two lights. but you will need to center the T in the hood to allow for two lights, if its perfectly centered it will house two screw in CF lights, with enough room to replace them if needed.
To get it centered, you'll need to take and chip away at all the plastic stuff around on the inside of the hood, I used a dremel tool and then used a set of flat pliers to break the rest off. then cut a small hole big enough for the light fixture's screw to go threw, and voila! it will fit.. it works, its kinda sketchy, but it fits... for reflectors, I cut a soda can in half, and put the shiny side down up in the top of the hood. fits nicely, a little trimming is needed, but nothing too bad.. it all looks good when its done
HOWEVER, with this kind of setup, you will notice a nice dark spot in the center of the aquarium, really not to attractive, and really makes it hard to place corals and stuff, what I ended up doing was buying a few acrylic sheets from home depot and some strong epoxy, and constructed my own homebrew hood, which houses two 10w CF screw in lights and a 13w CF as well.
good luck!