OK, I was able to figure this one out. I needed to boot from the installation DVD, and get to the command prompt. Once there, I made all of the volumes inactive, and then made the volume I wanted to boot active.
I am having an issue getting my PowerEdge T610 to boot to the OS partition. I have attempted to change the drive letter to C: however every time I reboot, the drive letter gets changed and the small 39Mb partition gets the C: designation. Does anyone know how to resolve this issue?
PowerEdge T610 Windows 2008 R2 Boot Issues