I'd guess that's a typo on their part. 95 - 97 used the same suspension setup. They changed the spring perch in 98. You'll want to get new struts when you install the springs, so just go for the 95 - 96 springs from H&R and get struts designed for 95 - 97 cars.
If you have a four cylinder,
www.spmotorsports.com is selling Eibach springs for 95 - 97 Zetecs for $169 right now. About a $50 discount.