First, Dancing with the stars tango has little or no relationship to argentine tango.. second I thought i knew something about every tango dvd/teacher.
There are too many claiming to be teachers. I looked at the amazon site for the dvd you mentioned and never heard of the teacher. Doesnt mean she isnt good just that I doubt that his is true argentine tango..
Arthur Murray type studios should be avoided at all cost. As well as any studio that has contracts. Their goal is to prolong the teaching to collect money.
Learning from DVD's is real difficult.

Now, good news... Don't be discouraged. I looked up Anniston.. Difficult but not impossible .... Just so happens that there is a true Argentine Tango festival taking place fairly close to you in Atlanta this April 3-6
http://www.atlantatangofestival.com/ good place to start..
Brigitta Winkler is one of the teachers ( she is a good friend and great, very patient with beginners)

If you can't check this festival out, pm and I will make some other suggestions including some youtube videos..

p.s I doubt that you wasted your money.... Watch the video and get what you can out of it.. just don't expect to "learn argentine tango from any video or quickly"
added:
Since this Argentina forum,,, do the right thing... get on a plane plenty of places to learn in BsAs and more fun than watching a dvd.