Vehiclecity, for future reference the "
1983-2011 Ford Ranger Mini Trucks" section is for posting pictures of your truck and what you're doing on it, not for asking technical questions. It's supposed to be a virtual carshow and build log for lack of a better description. It's already here so don't start another, either it'll stay here or the moderators will move it to the appropriate section.
As long as the bore (center hole) of the later model wheels is larger than the spindle (part sticking out of the brake rotor), the difference is not a big issue on Ranger wheels. For the lug nuts, it sounds to me like you might be trying to use the wrong style of lug nut for the wheel.
As SenorNoob said post pictures of what you have and are trying to work with. There were a few different wheel, center cap, and lug nut styles used over the years. Pictures will be easier for us to decypher than attempting to describe it. As they say, a picture is worth 1000 words.