Hi, I recently bough a new MacBook Pro 5.5 (Mac OS X version 10.6) that came with an iMovie version 8.0.4. I've been using iMovie version 4.0 for the past couple of years, often for some complicated mash-up editing splicing various audio tracks over different videos, to my great satisfaction. It seems that this new version of iMovie doesn't offer the same capability as far as multiple audio tracks. Basically I miss my old version, and tried unsuccessfully to install it on the new mac (from my old desktop computer). The staff at the Mac Store told me it was completely impossible to install any lower version, but I got the strong vibe they just didn't want to discuss it, so I'm hoping someone here has other ideas. Can anyone tell me if it's at all possible to install a previous version of iMovie on a new computer? (if not version 4.0 a version in between?) Thank you for any help you can provide. all the best.