its pretty easy, all I used was a piece of linoleum and turned it over to the white back (you could also use a piece of white construction cardboard) and then have that on a table up against the wall then I taped the top of the linoleum to the wall then used a couple binder clips to clip the bottom the the table. Then have something like a box over the top of the table and that holds the sheet that I use to diffuse the light, then just 1 light on each side (I use the lights that I used to heat the tanks with ) and one light on top.

It kinda looks like this, this isnt my picture but I cant post just the link.
http://www.makezine.com/blog/131169962_f0f150c8e2.jpg

Edit: I wish mine looks like this but ive got the "Ghetto" setup, it still does the job though