SYMPTOMS
All template packs are installed on the server and all templates are available in Sitebuilder control panel. However only few of them are available in SItebuilder wizard.
RESOLUTION
To be able to see installed templates in guest wizard it is necessary to add them into appropriate plan in Sitebuilder administrator interface.
Sitebuilder Admin CP, Users, Plans, Default Plan (Plan for trial sites), Templates. Select necessary templates and add them to the plan. After that click
OK.