Follow these instructions to download and install opera for P800/P900:
NOTE: We recommend installing the browser on the D: drive (memorystick) to leave phone memory available for browsing and other applications.
If you do not have the PC Suite, transfer the file to your phone using Infrared or Bluetooth, then open it in the messaging application. The SIS file can be deleted from the inbox after installation.
Need help? Hit F1 anytime while using Opera to access our online help files, or go here.