Are you asking about the "official" 2nd Arkansas Cavalry CSA (Slemons')? Or one of the other regiments which were unofficially referred to as the 2nd Arkansas Cavalry CSA? Or the 2nd Arkansas Cavalry, U.S. Volunteers? Or the 2nd Arkansas Mounted Rifles?
Either way, I'll be glad to post what I know about any of these regiments. Just let me know.