http://www.geocities.com/Pentagon/Barracks/6090/fifth.htm
My great-great grandfather W.T. Dement fought with the 5th Arkansas Infantry and I have been researching the history of the unit. A very nice history is available at the e-mail address listed above as well as a drawing of a regimental flag. I am not sure if the design of the flag is genuine but it is the only flag I have found so far.