oiled snake,
if you want to install these, simply replace an existing city graphic first.
First of all, go into your Civilization III folder and open the Art folder. From there open the cities folder. This is where all the game's city graphics can be found.
There are two files you need to replace. The regular city, and the walled version. I'm not sure which culture group you want to place, but let's say European.
Before you do anything, rename the existing files rEURO and EUROWALL to something different and save my celtic city graphics -> rCELTIC as rEURO and CELTICWALL as EUROWALL
Remember though, these celtic cities are only single era, so even in the later ages they will still look ancient.
Please tell me if that helps / works.
