I got this as a bonus with Paintshop Pro 8 Ultimate. Is this a 32bit or 64bit program?
If you check the system requirements posted below, you'll see that it's specified next to the operating systems that Corel FastFlick needs 32 or 64bit version of Windows which means that it's compatible with both versions and if you download that version, it will work properly without issues. Just make sure to use a version of Windows that's mentioned in the image below.