The installer for iMovie 2.0.1 that you downloaded from The Apple Store reports that the installation was successful, but only two files are available in the iMovie folder: "iMovie Web Read Me" and "Late Breaking News." The iMovie application and its files are not installed.
Solution
iMovie 2.0.1 requires Mac OS 9.0.4 and will not install or work with computers that have Mac OS 8.6 installed.
2. Install iMovie 2.0.1 from the disk image that you downloaded from The Apple Store.