I don't know anything aboout Bama KDs in particular, but in my browsing, I've noticed that it's often the biggest, oldest, and most "highly ranked" chapters that still don't have websites when everybody else does. My guess is that they don't feel the same need for PR that smaller chapters do.
Also, right now AOPi's and Theta's at Bama don't either although they have within the last year or two.
Its tough to find someone in the chapter to keep the website updated
I really have to disagree. With 200+ members in a chapter, I find it hard to believe that they can't find someone in the group to keep the website updated, especially when students are online all the time (judging from the popularity of MySpace/FaceBook).
Some chapters even hire outside sources to create/maintain their websites.