@Roy -- You missed something. ;-)
http://www.on1.com/products/effects9free/
@Kathleen -- Yes, it's free -- but it's version 9. OnOne seems to offer a free version whenever they issue a big, new update. Offered FREE for the past few months is version 9.0, while the most recent release is version 9.5 (which is NOT free).
EDIT TO ADD -- I just went through the download steps, and though the page says Version 9, the file that downloads is Version 9.5. So, looks like your email was right, Kathleen; Version 9.5 FREE for a limited time! :-)
('d like to give it a spin, but the system requirements are out of range for my 32bit, 4 GB ram, Photoshop CS3 system. Scroll to the bottom of the linked page to check the full system requirements.