If you are on the 3.x release of JROX Affiliate Manager, follow these steps to upgrade.
First, backup all of your data, including your files and do a database dump. You can do a database dump using your web hosting control panel, or through the JAM admin area, under Settings > Global Configuration > System > Database Backup > Backup Now
If you have a custom theme done, make sure you also don't overwrite the /themes/main folder if you have custom themes made.
Once you have uploaded it, go to your JAM admin area, under Settings > Global Configuration and click on the "Check for System Updates" button to run the database table update utility. This runs the /import/jam_updates.php file for any database scheme updates.
Once that has finished, make sure to delete the /import/jam_updates.php file if the script cannot delete it for you.
* Security issue for JAM before version 3.0.48 *
Make sure you remove the following files as it poses a security issue when deleting images and folders from the Innovastudio HTML editor: