I think I fixed the sticker for you. As it is a sticker, just put in enlistment and muster out dates and units served and rank. Leave descriptive notes regarding battles and such to the biography. You have good notation there already to support the sticker.
I found the proper name to use for the 4th Reg, SC Inf. through this WikiTree page. Good place to bookmark for info on Confederacy categories on WikiTree.
Confederate States of America, United States Civil War
No luck on the census though. All the best