Try Turkey Creek or Tumbling Waters Campgound
My friends and have stayed at both of these places. Turkey Creek is very close to the Tsali campground. Tumbling Waters is a little farther down the road.
I prefer TW over TCreek--the people/owners are nicer, the showers are hotter, and the owners make breakfast in the morning!
Both campsites have websites. Do a Google search using the title and Tsali in the same search.
Let us know how the riding is at Tsali. I have heard the trails are in rough shape!