Installing a Drupal filter is a simple task and can be achieved by the following steps.

• Download the required filter.
• Unzip file if required.
• Copy to your ‘/sites/all/modules’ directory.
• Log in with an administration account.
• Select ‘Administer->Site Building->modules’.
• Scroll down to filter and click ‘activate’.
• Select ‘Administer->Site Configuration->Input Formats’
• Select the Default input format and click ‘configure’
• Tick uploaded filter and ‘Save Configuration’