Why is it that when I purchased OWB and tried to install it, it disabled ALL of my DLC, plus, even when I delete game info and save files and try to reload with DLC, if I install OWB, it does the same all over again. Has anyone else seen this issue with their PS3?

Are you by chance a Canadian using a US copy of the game? I hear that causes problems.

I'd try installing the game data, then patching, then redownloading the DLC starting with OWB