Uploading SCORM files to Moodle

We have developed a six-session class. Each session is a separate file, which we publish to SCORM and then upload to a Moodle page. The six-sessions are connected to one another a main menu. The problem we are having is that everytime we make a change to a file, republish it to SCORM and upload it to Moodle, the url for the session changes. This means, if we make a any changes to Session 1 and upload a new file, we have to republish and reload Sessions 2-6 to change the url for Lesson 1. Is there a way that we can specify the url we want to use on the Moodle page or does any have any suggestions around this?Thanks!