
Originally Posted by
Steel General
I would think that any graphics program can handles the .PCXs. The ones I had used on that map I edited on my own. Some are easy to do (Civ uses a basic magenta as its transparency so the .pcx files with that color background are a breeze), the others are a result of careful color selection and deleting.
As for the licensing, I found some posts related to the Creative Commons licensing, but nothing absolutely definitive, so I would think its OK to use them for non-commercial puposes.