I hope you find your disk. I'm looking at the Ulead site and I don't see Web Razor listed anymore, but maybe I'm just not looking in the right place. I seem to remember that it was a collection of plug-ins that were also bundled in with PI. If you've got PI, the button maker is under the Web menu commands.

Stephanie's PhotoImpact Tutorials
PhotoImpact 8 and 7 Classes