What other particular rims' fitment are you wondering about?
Assuming you have the factory '96-'98 GT (10 spoke) rims, those are kinda hard to come by. Maybe ebay or craigslist.... Otherwise, any of the wheels at AmericanMuscle.com or any of the other popular aftermarket retailers will fit your car, should a new set of 4 be in the budget.
"What should I do about the front tires?"..... Help us help you, what's wrong with them? If they are worn down or bubble on the sidewall from whatever you hit that damaged the rim, my vote goes to replace.