RESOLUTION
Consider installing the Shared Plesk Sitebuilder template if you need all the Plesk instances within the Hardware Node to automatically detect and use the Plesk Sitebuilder instance you install. Users and Sites created by different Plesk instances will not interfere.Plesk instance running on a VPS with a local Plesk Sitebuilder instance will not connect to the shared instance installed with this template. Instead it will use the local instance for site content management.
Consider installing the Private Plesk Sitebuilder VZ Template if you need a certain Plesk instance to use its own copy of Plesk Sitebuilder.
Please note that if you install the Plesk 7.6.1/8.x template into the same VPS (regardless of the template installation order), Plesk will automatically detect Plesk Sitebuilder and immediately use it for site content management without any additional configiration efforts.
Plesk instances on other VPSes will not detect the Plesk Sitebuilder installed by this template automatically. Refer to the Plesk 7.6.1/8.x documentation for integration setup instructions.
Additional information
NOTE: Installing to the SVPS is not recommended. If you reinstall the SVPS all the SiteBuilder data will be lost.VPS - Virtual Private Server
SVPS - Service VPS