If you are creating an individual scrapbook you need to make sure your MediaTags have the option checked to "Include in scrapbook for this person". Edit the MediaTag to see that option in the lower left corner.
If you are creating a family scrapbook then only the media attached to Spouse row or family fact for the couple will be included. The option needs to be checked "Include in scrapbook for this family (or event)"
Version 7 is very unique. It can be opened in RM6 and then back again. The decision was made not to change the file format to make that possible. All other versions its not possible to move backwards once opened in a newer version.
If your website was created in RM6 and you're still using it then the url will begin with myrootsmagic.com. If you are using RM7 and created the website in RM7 then the url begins with sites.rootsmagic.com. If you are getting mixed results then check what you are entering.