Uploading Troubles for iMovie '08.

Hello Friends:

I created a project in iMovie '08, combining photos, small clips of video, and music for my son's marching band. I'm really happy with it, but upon trying to upload it to YouTube, iMovie went through all the motions, but at the very end of the upload, the program proclaimed, "An error has occurred."

So, no luck.

I tried several times, also tried a different size. Still no luck.

I'd really like to make it available on Youtube. Suggestions?

As an alternative, I was able to successfully load it to my iTunes. However, I can't for the life of me figure out how to share it with friends and family via itunes. Is there a way to do so? Not all friends and family have macs, muchless the version of imovie that I use, so I'm concerned about having it on a site to where anyone can enjoy it, regardless of platform.

Interesting to note, I also tried loading it onto a thumb drive I had - which has a rediculous amount of space on it, so I tried to convert it using the "import with quick time," The whole thing was glichy and couldn't get past the second slide.

I look forward to your recommendations. Thanks tremendously!