Image ready can take AVI's if I recall correctly it seems they can open other movies as well.
for some reason the codec you're using doesn't like my version of of Imageready. (I know I went the long way around this but hey I'm stuck at work and I'm bored.) opend Windows movie maker and turned it into a WMV that I pulled into After Effects and then saved that video file to an image sequence. from there Imageready pulled it in.....
and here ya go
it's in the origional size and as uncompressed as I could make it. I'll leave you to tweak it as you need to. (ps I'm deleting it off my site in about a week please save a local copy)