I am having the same problem as another poster in another thread, but couldn't post due to the anti-thread necromancy policy.
I have W3/TFT version 1.23 and when I click on the ETD map to play the menu go up like it is about to start and then they drop again giving me the options screen.
One of the solutions was to put the w3x file in the Downloads directory. My install does not have a "Downloads" directory. I have Defense Of The Ancients and it works by dropping the w3x file in to the /Warcraft III/Maps directory, which is where I dropped this w3x file. I have downloaded the ETD file from two different sources, so I do nothing think it is a corrupt or incomplete download.
What in the world am I doing wrong?