Problem: The "SharePoint Server Publishing Infrastructure" is only available to Site collections on farms that run "SharePoint 2010 Enterprise or Standard" editions. The publishing feature (SharePoint Server Publishing Infrastructure) adds functionality such as menus for navigation, changing page layout, publishing web pages & swapping master pages.
Initial Hypothesis: If you have SharePoint 2010 Foundation or have not enabled the "SharePoint Server Publishing Infrastructure" you do not have the UI to work with key functionality for your site collection such as swapping the master page or editing the navigation. Some of this functionality is available through the UI it is just hidden from the site settings page.
For example:
Master pages can be swapped at: http:/// _layouts/ChangeSiteMasterPage.aspx
Navigation: http://www.demo.dev/sites/kb/_Layouts/AreaNavigationSettings.aspx
Resolution: If you want some publishing features you could look at http://mundpublishingfeatur.codeplex.com/
Initial Hypothesis: If you have SharePoint 2010 Foundation or have not enabled the "SharePoint Server Publishing Infrastructure" you do not have the UI to work with key functionality for your site collection such as swapping the master page or editing the navigation. Some of this functionality is available through the UI it is just hidden from the site settings page.
For example:
Master pages can be swapped at: http://
Navigation: http://www.demo.dev/sites/kb/_Layouts/AreaNavigationSettings.aspx
Resolution: If you want some publishing features you could look at http://mundpublishingfeatur.codeplex.com/