There are currently no versions older than the 21st Anniversary Edition on this site, though they may well be added in the future.
Yes! Each save on Promotion Wars 1.3 consists of 2 things - a .sav file, and a folder. Both will have the same name as your saved game and will be in the same folder as the exe file you click on to open the game.
Simply put the .sav file into the save folder, then move that save folder into the Saved Games folder of your Promotion Wars 21st Anniversary Edition folder. When you begin Promotion Wars 21st Anniversary Edition, your saved game will be there ready to play.
If you find you have no logo images etc, put the Real World 2021 Data Pack in your Data Packs folder and use that for any custom images you had for your saved game.
Yes! Just move the folder containing the scenario from the Scenarios folder of Promotion Wars 1.3 into the Data Packs folder of Promotion Wars 21st Anniversary Edition. When you start a new game, click on Change button on the New tab to select your Scenario from the list.
If you notice the game isn't showing any custom logos from your 1.3 save or Scenario, you can easily move them across:
For normal games - add the Real World 2021 Data Pack to your Data Packs folder and use the Images folder within that folder for any of your custom images.
For Scenarios - look in the scenario folder within your Promotion Wars 1.3 Scenarios folder, or the Images folder of your Promotion Wars 1.3 folder. Simply move the required image files into the scenario folder contained in the Data Packs folder of Promotion Wars 21st Anniversary Edition.