Oh crud, I forgot to add the ..\Scenarios\ACW part.
Edit: Does this look better? It ran for me this way.
1) Extract the ZIPFile to the Scenarios Folder. This will create a new "Acw" Folder inside your Scenarios Folder.
2) If you downloaded the custom graphics as well, extract these 3 files into the Units Folder inside the Art Folder of the
"Acw" Folder.
3) Convert the Acw.bic file into a Acw.bix file using your PTW editor. To convert, open the PTW editor. Go to file, then
import. Check all 3 boxes. Go to the acw folder and select the acw.bic file (you may have to have it look for all files).
Click import. Go to Save As under file. Save it as Acw, in your scenarios folder. Now you have a acw.bix file.
4) In the PTW editor, make sure under Scenario Properties you have set Scenario Search Folders to: "..\Scenarios\ACW"
(without the quotes). Double-check before you save and close file.
5) To play as the CSA, be sure and change in the editor, under Player Properties, that Player 1 has CSA government and
Player 2 has USA government. Failing to do so can unbalance your gameplay, since the two governments are designed with
the Union and Confederacy in mind. No changes of this nature are needed to play as the USA.
NOTE: If the scenario fails to load after steps 1-5, please proceed to steps 6 through 12. Be sure and post in the
CivFanatics forum about this failure (include version of scenario and version of PTW). If the scenario does load, proceed to
step 13.