A template is a type of Joomla! extension that changes the way your site looks. There are two types of templates used by the Joomla! CMS: Front-end Templates and Back-end Templates. The Front-end Template controls the way your website is presented to the user viewing the website's content. The Back-end Template controls the way your website's administrative tasks are presented for controlling management functions by a Joomla! Administrator. These would include common tasks such as: user, menu, article, category, module, component, plugin and template management. Reference: http://docs.joomla.org/Glossary
A module that helps to display the location of each page as you browse through all the pages on the site. Speaking of navigation, links like Home >> Dream >> Corners are called breadcrumbs. Breadcrumbs appear by default; you can turn them off in Module Manager.
Module Class Suffix is a parameter in Joomla! modules. It is set Module: [Edit] screen under Advanced Parameters. Setting this parameter causes Joomla! to either add a new CSS class or modify the existing CSS class for the div element for this specific module. When Joomla! generates a module, it automatically create a CSS class called "moduletable" to allow styling of the module - for example, <div class="moduletable"> To create a new class, enter the parameter with a leading space. For example, entering a space plus "myNewClass" will create a new CSS class called "myNewClass". The HTML will be changed to <div class="moduletable myNewClass"> To change the name of the existing class, enter in the parameter without a leading space. For example, entering "_mySuffix" (no leading space) will cause the HTML to changed to <div class="moduletable_mySuffix"> Generally, it is recommended to use a leading space to create a new class. This way, CSS styling for this module that uses the standard class names will continue to work. You can use the new class name to add any desired styling to the module without needing to re-create all of the existing CSS code. Note that, if you create a new class name, make sure it has a unique name and doesn't conflict with any existing class names. Reference: http://docs.joomla.org/Glossary
