You can import your recipes from Shop'NCook Reader the first time you run Shop'NCook Menu. When you are asked if you want to import your data fro another installation, select to import and browse to folder Shop'NCook Reader in your Documents folder.
If the software doesn't let you select the folder itself, open it and select a file inside the folder instead (for example the file "favorites.dat") and click OK to start the import.
Alternatively, you can export your cookbooks in Shop'NCook Reader to Shop'NCook Exchange format by selecting "Export Cookbook" in the Cookbook menu. You can then open your exported cookbooks in Shop'NCook Menu by selecting "Add Cookbook..." in the File menu. Cookbooks imported in this way are locked. To modify them, you need to select "Unlock cookbook" in the Cookbook menu.