You can simply ask for permission to include in the theme, grab the extended license and follow the integration instruction they provided.
Very good news! Congrats!
That would be nice I guess. Getting some shares for every author and staff should be a great idea then.
Looks nice. I like it.
As @chrisakelley said. There should be an XML file for the sample pages included in the theme package. Then you can use “Tools > Import” menu on the admin panel to import that file.
If it is not there, try to contact the author.