Visitor seats get the top 20 rows of 501-504 and 521-524. They also get the first 10 rows of 144 to 148 and all of 149.
I'm sure that will be expanded for the SEC.. but FWIW, you do not want any part of a seat in 149. Those are probably the worst seats in all of college football. The visitor locker room is underneath that section and that's about all you are going to see of them. As you can see, the closest 149 gets is about 5 yards past the end of the endzone, and its not angled, you are pointed straight across looking at the asses of the south end zone stands.