00 Seats In A 98

Soooo what needs to be done to make that stuff work? 

I've seen it done and the wife has some 98 seats in her 99 so there cant be a whole lot to it.   

Need to know basically for tomorrow since were installing new seats at Fixxfest lol.  

Thanks! 

I tried searching but didnt get to far, going to keep searching but in the mean time if someone answers this id love to know!