It's a customized version of BUG mod suited for TAM 0.91 and its latest patch.
It requires a full TAM 0.91 + latest patch installation
http://forums.civfanatics.com/showthread.php?t=371077
Credits go to BUG mod creators
Installation guidelines
-----------------------
1) Unpack the 7z BUG file
2) Copy the EXE file into your BTS folder (tipically "\Program Files\Firaxis Games\Sid Meier's Civilization 4\Beyond the Sword" or "\Documents and Settings\[user]\My Documents\My Games\Beyond the Sword" depending on your preferences)
3) Double click on EXE file and confirm extraction overwriting existing files
It requires a full TAM 0.91 + latest patch installation
http://forums.civfanatics.com/showthread.php?t=371077
Credits go to BUG mod creators
Installation guidelines
-----------------------
1) Unpack the 7z BUG file
2) Copy the EXE file into your BTS folder (tipically "\Program Files\Firaxis Games\Sid Meier's Civilization 4\Beyond the Sword" or "\Documents and Settings\[user]\My Documents\My Games\Beyond the Sword" depending on your preferences)
3) Double click on EXE file and confirm extraction overwriting existing files