Lauren, click on the object and then use 
< and 
> to turn them. 

Oh and for some reason, this cheat is case sensitive for me. I must type it in as Bendabond does.
boolProp Allow45DegreeAngleOfRotation true Also sometimes I need to also use
 boolProp SnapObjectsToGrid true and 
move_objects on if the object is too close to a wall or other object.
EDIT: Here is a thread that lists all  Maxis acknowledged cheats 
 click here.