RE: How can I tell if I have an SE?
The JS29 will not prove you have a SE pacakge although you could get a RT/SE with that VIN. Other trim to look for beside the smaller rear window with vinyl roof are rear trim around the taillights and hood trim at the front windsheild. Also look for a small aluminum trim around the front license plate, on the valance. This was only on SE and Western Special. Looking thru the option codes, I would think that the data plate would have the A47 on it.