>>Another friend, who worked for a travel agency in MEX, says that Azteca is a reincarnation of TAESA<<

Mmmm...I'm pretty sure he is wrong. AFAIK, the airline that was going to be the reincarnation of Taesa was "Vuelamex" which was supposed to start operations with a couple of 717's one or two years ago but has never gotten off the ground so far (i really don't think they will); apparently their having to do with Taesa was what was keeping the mexican aviation authority from giving then the go ahead. (I think I even saw a picture of one of their 717's in their color scheme before they were going to be delivered). I'm not 100% sure, but I think that's the story about Taesa's sucessors.