If you are a beginner using WebsiteBaker you might find some helpfull tips here.
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.
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.