We have retested the functionality in our testing environment, and everything works.
First of all, make sure that you are trying to view the same Web Interface type that you've configured. These settings are Web-Interface-specific, and if you, for example, configured the Web Interface for Administrators, the changes will not affect the Web intrfaces for Help Desk or for Self-Service.
Also, can you send screenshots of the page for viewing Computers of the web interface that you've configured to our support e-mail (support[at]adaxes.com). Also, include the Web.Config file in the letter (the one that you modified per instructions in step 2 of the post).