Hi Sherri,
you can cut (strg+x) and paste (strg+v) your scenes to reorganise them. Just cut out the scene you want to move in your story view, click on the scene after which it should appear and insert it again. I would collaps all scenes so it´s easier for you if you have many scenes. You can also set any scene as the starting scene by rightclicking on a scene > start scene.
Also if you insert or reorganise slides in an existing project you might have to reset the menu in the player. Sometimes it doesn´t insert the newly created slides at the right place.
Greetings,
Susi