If you need your website to do something more than display text and an occasional image you might need a module to enhanche the CMS's functionality.
There are many locations where you can find modules for WebsiteBaker, but there is one official repository. The modules on this website are all tested for functionality.
Other great sources are:
(more to come)
Not really a WebsiteBaker issue, but it is one of the most seen cause of problems.
A *nix (unix/linux) webserver uses a permissions method a bit different from what most people are used to see in Windows.
Files and directories are owned by a user in the system. All files can have permissions set to read/write/execute by the owner of the file, or by the group a user belongs to or just by everyone.