It's quite safe to assume that the answer is yes. I'm unaware of a single example of a ship from that period that didn't have footropes.
One suggestion: if you're working on the version of the kit that was recently reissued by Revell Germany, throw away the rigging instructions. They're utter nonsense. If memory serves, the original American ones were better - but I'm not a hundred percent sure. I built that kit when it was brand new, in 1961, when I was eleven years old; I don't think I've seen the inside of the box since. But I have looked at the new instructions, which Revell Germany used to offer online.
Anybody who's seriously interested in this ship really needs to get hold of a copy of the book C.S.S. Alabama: Anatomy of a Confederate Raider, by Andrew Bowcock, published by the Naval Institute Press in 2002. It's the best, most thorough reconstruction of the ship published to date; it includes a nice set of plans, and copies of all the known photographs of the ship. Unfortunately it appears to be out of print now, but used copies can be had at (as such things go) fairly reasonable prices: http://search.barnesandnoble.com/CSS-Alabama/Andrew-Bowcock/p/9781557500038 .
Be warned: the book will make it obvious that the old Revell kit suffers from quite a few inaccuracies. How important they are depends on the individual modeler. But as a guide to rigging the model that book would be hard to beat.
Hope that helps a little. Good luck.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.