This includes new banners and symbols, on the battle map and on the strat map, in the menu and in-game.

From the Readme:

INSTALLATION
Simply point the installer to your Rome - Total War Folder and let the installer do it's magic.
At the end of the installation, the installation script will start "Xpak.exe", which will pack all the neccessary file during the installation into the pack files. Sometimes you'll be asked to press a key so that the installation continues. When asked if some files should be overwritten, press "a" (all).

CREDITS
Thanks to Webbird for letting me edit his Dacia banner!
Thanks to Marcvs Traianvs and Lionskin from "Res Gestae" for letting me use their install script!
Thanks to Seasoned Alcoholic for providing the reference material!

TERMS OF USE
You may use this banners and symbols in any mod, privately or publicly, without having to ask me for permission. (I'd say yes anyway)

Discussion thread: http://www.twcenter.net/forums/showthread.php?t=55076

K.K