Ginger,
I haven't actually been to that campground so I may be less qualified to respond than others.
Having said that, the terrain in that area isn't as bad as you seem to have experienced previously. According to MS Streets and Trips, the campground is 1.3 miles from exit 8 of I-77 on US Highway 52. Take Chances Creek Rd (SR 148) 1 mile over to US 52 and then south .3 miles. The campground should be on the east side of the highway.
If you want to call them for additional clarification, their number is 276-728-7203. Enjoy your trip.