For those of you new to the DYP mod, I would like to give you the benefits of my experiences in getting it working on my system. In listing the following steps, I am indebted to Nightstorm and Robert IV, whose assistance and postings, respectively, gave me the directions needed to solve the install problems I myself encountered.
1. Download the current version of DYP to its own directory. Isak's excellent "EXE" version of the file is preferred if, like me, you are new to the mod community. It will automatically load the required changes into the standard Civ3 directory. You can find the mod at
http://civ3.bernskov.com/, accessable by clicking on the links listed at the bottom of any of Kal-el's (the designer's) postings in this thread, or simply typing it into your browser address.
2. Completely uninstall your original Civ3 directory (usually C:\Program Files\Infogrames Interactive\Civilization III on a standard system install).
This is vitally important. Merely using the Windows uninstaller to remove Civ3 and any Firaxis patch will leave artifact files behind in the above directory which will conflict with the mod and prevent it from running. I myself use Explorer to highlight the entire Infogrames folder and delete it, clicking "Empty Recycle Bin" before proceeding. The folder will be recreated by step #4 below - so don't be afraid to trash it. However, if you have other mods loaded to the basic files, this will cause them to be deleted as well (but in that case, you're not a neophyte to the mod community, so handle your mods/skins/etc. as you see fit).
3. At this point, defragment your hard drive.
4. Reinstall Civ3 from the cd-rom.
5. Reinstall the current patch (1.21f at present).
6. Open (run) the DYP.exe file to load the mod.
If you download the .zip version, extract the files to the game's directory (stated in #2 above). Click "yes to all" if/when asked whether you want to overwrite files.
7. Once again, defragment your hard drive.
8. You should now be ready to go. Kick back, ingest your favorite substance, and be prepared to enjoy what is undoubtedly the single best mod out there to date.