55 gallon drilled tank

With bad weather approaching this season I have decided that I really need to back up my tank. The way it was rigged, if power went out water would flow over until my floor held bout 10-15 gallons of saltwater on the second story. I fixed this....I thought, but I still have a problem. The...

I just bought a setup from craigslist. It is a 55 gallon tank it is drilled through the bottom and has 2 hoses. Also it came with a Berlin prtein skimmer 2 pumps and a marineland tidepool 2 wet/dry system. My problem is that I have no idea on how this should be cofigured underneath in the stand...