After you download your Premium WordPress® Theme, you need to upload it to your hosting account, unarchive it, and then activate it.
ZIPfile containing your theme to the /wp-content/themes directory. For more information, see Upload files to your website (FTP).
ZIPfile you just uploaded. For more information, see Unarchive files and directories.
Your new theme displays as soon as you visit your site.
For additional help, see these WordPress Tutorials.