I have been trying to upgrade my site from an old version to the 1.5 current version.

The upgrade appears to work from the front end, but I cannot view the admin side. I continually get this screen:

Hello. Thank you for loading Zen CartŪ.

You are seeing this page for one or more reasons:

This is your first time using Zen CartŪ and you haven't yet completed the normal Installation procedure.
If this is the case for you, you will need to upload the "zc_install" folder using your FTP program, and then run zc_install/index.php via your browser (or reload this page to see a link to it).

Your /includes/configure.php and/or /admin/includes/configure.php file contains invalid path information and/or invalid database-connection information.
If you recently edited your configure.php files for any reason, or maybe moved your site to a different folder or different server, then you'll need to review and update all your settings to the correct values for your server.
See the Online FAQ and Tutorials area on the Zen CartŪ website for assistance.

In looking at the admin/includes/configure.php file, it is blank for some reason. And it was blank on the download I received of 1.5. Can someone share with me what it should look like?