Software Security Notice - Script Installs need upgrading

Every day I receive advice that "Software Security Notice - Script Installs need upgrading", and every day I go to the link provided. But WHAT TO DO WHEN YOU GET TO THE PAGE?
There are no instructions.
Everything is as clear as mud?
Can anyone help me, please

Who is sending the messages? That sounds like you installed AG using something like Fantastico and if that's true it should have a link to update.

Updating is easy so what version are you using?

the link provided by email does not provide the upgrade, how can update manually?

Before anything make a back up of your current guestbook files.

Download the guestbook from the Free Scripts link on left. Extract files from the zip file. download a copy of the config.inc.php file on your server. Copy the database information from the config.inc.php file you just downloaded to the config/inc.php file in the files you just extracted. Upload the extracted files to replace the files on your server. Visit misc/update_db.php (or is it db_update.php) in your web browser.