iMovie 7.1.4 + Quicktime 7.5 = iSight no longer works

Well after having some issues with my FCP 6.0, I decided to re-install FCP, iLife 08, and quicktime (via pacifist), and now my iSight doesn't work in iMovie, or Photobooth. iMovie tells me there is no camera connected, and photobooth just shows the Camera with a line through it.

Any tips on how I can get this to work? I haven't updated Quicktime yet, and I don't think that will fix it.

I am experiencing the same problem with iMovie. It works well with Photobooth, though...

I actually fixed this problem earlier, here is what I did in order.

I downloaded Final Cut Pro Uninstaller and removed FCP
I downloaded the latest Quicktime 7.5 from Apple
Installed it via Pacafist (and did the 'upgrade' option)
Re-installed iLife, which repaired iMovie
Re-installed Final Cut Studio 2

Tested the iSight in Photobooth & iMovie, and they both worked.

I then proceeded to update all the software via Apple Software Update, and tested all the apps again and iSight worked as intended.