I never heard that he was receptive to moving to guard, where did you get that? Seems like it would have been a smart move. Although with his injury history, moving inside could have made things worse.
You'd have to go dig it up, but it was ABSOLUTELY posted around the time B.A. retired and Jacksonville released him. Might have been an article by Armando or Barry Jackson? I remember being surprised as well. I assumed that he simply wanted to remain at left tackle.