Our three year old son will be going into the county school district's autism program this fall. It is all new for us but it seems they have a well developed program. We are friends with families with a 5 year old and a recently diagnosed 15 year old. All of us are either active or retired military. If you need more help let me know.
Here is the source...
CCS' - Exceptional Children's Services
There are also many programs via Army Community Service and EFMP.
http://www.fortbraggmwr.com/efmp.php (broken link)
Autism Society of Cumberland County
http://www.autismcc.org/