SmartBlocks comes with eight blocks - one for each XOOPS block position - and should be set visible to all on all pages in their corresponding position.
Adding blocks to a page is done through the SmartBlocks module, where each module can provide a customised resolver class to define which pages are available and which page, the user is viewing. Alternatively, the resolver classes can be put in the /smartblocks/class/resolvers/ folder, where there are already a few resolvers to look at.
The resolver-defined pages are set in a hierarchy, where blocks can be set to "fall down" on subpages. This makes the front page merely the top of the hierarchy, the modules are the next level and then comes the module-defined subpages.