We bought our TACA tickets through American Express Travel back in July when a sale was mentioned here, and while I specifically asked if all departure taxes were included (the AmEx Travel representative said they were), we were charged the $32.50 departure fee each for 3 adults and 3 children and $3.75 (I think) conservation fee each for the 3 adults upon leaving BZE. The tickets were still a good deal (right under $300 each including all US and BZ taxes for IAH to BZE), but I felt misled by AmEx Travel.