I have been looking around a lot lately for some help with these problems I've been having. Initially I found enough info. here to get the game to work with Steam (Although not enough to be able to access R:TW's Vanilla still). I'd really like to be able to access Vanilla as well of Wars of Men or Dominions. Here's how it's all setup on my computer, I am fully aware that I may have butchered this...

THE NEW SHADOW:
Target- "C:\Program Files\Steam\steamapps\common\Rome Total War Gold\BI"
Start In-"C:\Program Files\Steam\steamapps\common\Rome Total War Gold"

WARS OF MEN:
Target-"C:\Program Files\Steam\steamapps\common\Rome Total War Gold\FATW_campaign_swap.bat"
Start In-"C:\Program Files\Steam\steamapps\common\Rome Total War Gold"

This is also in my R:TW Gold "Launch Options": -nm -show_err -mod:bi\ci

I believe that other people have this happen when the wrong files are chosen but, when I try to access R:TW I get the "horde" unit error.

Thanks for you time and sorry if I have asked a question that's already been answered. It's just that I can't find the info. that seems to work.