Don't forget to select 'Vox Populi with EUI' in the auto-installer. If you really want the EUI, you can find the EUI in the manual installation folder (UI_bc1.zip), and unzip it in your steam DLC folder (C:\.\Steam\steamapps\common\Sid Meier's Civilization V\Assets\DLC). The easiest solution is to just select 'Vox Popuili (no EUI)' in the auto-installer.
If it still does not work, ask for help on this forum and post a bug report on this site Having both the steam version and the auto-installer version cause problems. Subscribe to any mod on steam, and search on your computer where this mod is located, it is the folder you have to select during the installation.
You have selected the wrong folder during the installation.I've used the auto-installer, but don't see any of the mods.Make sure you have the last version of Civ (1.0.3.279), and the two expansions (Gods and Kings, and Brave New World).