[flagaddict]

Thank you. I was able to get it to work now.

I will continue testing and provide further comments. First impressions:

1. Instructions need to include that both of these WHM options need to be unchecked in 'Server Configuration->Tweak Settings':
   1. Prevent installation of addon scripts not provided by cPanel
   2. Prevent installation of cPanel addon scripts that have been altered (Turning this off may be useful when testing custom addons).
2. Installer needs to handle permission configuration. X-Cart did not function until I manually performed:
   1. chmod 777 ${XCART_HOME}/var/tmp
   2. chmod 777 ${XCART_HOME}/templates_c
   3. chmod 777 ${XCART_HOME}/upgrade
   4. chmod 777 ${XCART_HOME}/log
   5. chmod 777 ${XCART_HOME}/cache
3. Remove the X-Cart Hosting advertisement seen during first login to /admin. I would think most users of this cPanel installer are Web Hosting Providers who don't want the advertised competition.
4. Installer should request admin email address in addition to admin username/password in case user's cPanel does not have a 'Contact Email' set which your installer apparently uses as cart admin email address.
5. Installer should email login credentials to store owner.