is the transmission going out when the car wont drive forward in overdrive but in 2nd

Actually if you are stoped and you start out in 2 you are actually in 1 or low,untill the governor shifts up into 2 .So you may have worn forward clutches,which suggests that all clutches may have excess wear. If the fluid is smelly like scorched,burned and is more brown than red,REBUILD OR EXCHANGE! Have pressures checked by a trans expert!

Could be , here are some shops to check it out and make the correct diagnosis. But first check your fluid to be sure it is full. http://repairpal.com/oldsmobile-repair-in-albany-georgia