1993 Grand Prix gauge conversion

Hi. I have a 1993 Grand Prix LE. It has the "dummy lights" in the dash. Through a friend I was given a dash out of a 1993 Grand Prix STE. My question is can I change the dash from my light system over to the gauge setup?? I have heard that everything is ran by the computer and that I can not do it while other people have told me that I just need to change the oil pressure sending unit to the correct type.

Any help is greatly appreciated.

FBF