The only way to move to disk0 will be to re-install the operating system and making sure on what hard drive you are installing the operating system on. You can go to the BIOS and check disk number before installing the operating system and during the installation you need to choose Disk0 hard drive.
Okay, think I solved most of it. I started over and grabbed in order the cables from Ports 0... Port 3. This put discs in correct order and kept the OS on disc 0. However, when I added the last 2 drives, it moved Disc 3 to Disc 4 for some reason, but the OS stayed on Disc 0. Why would the other drives move locations....for lack of better term.