Thanks for the help, Galv. I finally got a reply from tech support. They say that all the connections provide the same 5V power, so no problem with hooking up the hard drives or whatever to the other connections.
If anyone is thinking about this PSU, make sure it can fit into your case. It was too big for mine and then I had to buy a new case. Then I moved everything over and I guess I broke my motherboard cause it doesn't work now (even with the old psu). So I had to buy a new motherboard and cpu and ram to go along with it. Now having trouble with the new build, so I just ordered a new SATA drive and some cables. So I pretty much got a new computer, because I wanted to quiet it down a little in the first place.
The PSU in my new Antec P180 case still needed some work getting it into with some bending and stuff. I don't know if it was worth all the trouble, but maybe it was time for me to upgrade anyway?