Once you install Drupal and the script loads you will be taken to your Drupal welcome page.
Here is information from Drupal's web site on what you will experience and what to do when you see that welcome page. Please read the drupal documentation page.
Once you click on the administer link in the menu you will be taken to the admin page where you can begin to work on your web site. Please note that the admin page is broken into 5 different sections:
Content management - Manage your site's content. Most anything to do with content itself will be here.
Site building - Control how your site looks and feels. Here you make structure changes to your sites look and feel.
Site configuration
- Adjust basic site configuration options. Adjust and configure site
behavior, name, email settings, cache, date and time, etc.
User Management
- Manage your site's users, groups and access to your site features.
Here you can manage accounts, users, roles and default registration
requirements.
Reports (no link available on the Drupal Site) - View reports from system logs and other status information. Various logs and information on your site are located here.