Try the WeiserWare Screen Saver Manager
Everyone who has purchased 3D Alien Aquarium is notified by e-mail
of any new versions as they become available, if they chose to
be notified of upgrades.
If you have bought 3D Alien Aquarium, you can request a free
upgrade to the latest version by clicking the Upgrade button in
the 3D Alien Aquarium settings window. This will open an e-mail
to WeiserWare requesting an upgrade.
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