Well, you'll have to get a bit more specific here. What did not work? Doesn't the leaderhead show up when you load your mod? Then your mod structure might be flawed. Make sure that the structer looks like Code: ...Sid Meier's Civilization 4\Beyond the Sword\Mods\YourMod\Assets\Art\YourLeaderhead for the leaderhead's art files and Code: ...Sid Meier's Civilization 4\Beyond the Sword\Mods\YourMod\Assets\Art\XML\RespectiveXMLFolder for the xml files. Best way is to mimic the folderstructur of the original BtS files as far as possible.