Click on Check Online Now for LatestVersion to find out if there is an updated firmware; if so, download the new firmware to your hard drive.
After you have downloaded the new firmware, click Browse to locate the firmware update on your hard drive. Click Upload to complete the firmware upgrade.
Check Automatically Check Online for Latest Firmware Version to have the D-Link router check automatically to see if there is a new firmware upgrade.
Check Email Notification of Newer Firmware Version to have the router send an email when there is a new firmware available.