I have found there's a serious problem with a lack of plugin compatibility with WPMu.
That's because plugins are written for WordPress and WPMU is not the regular Wordpress a lot of people think it is. If you look at the code, there are a large number of differences.
Sort of like putting a 707 engine into a VW Beatle. Granted, they're both transportation vehicles but they are two seperate forms of transportation.
My issue with this forum, and I'm not pointing fingers at you Bill, you're just handy, is I feel like we're getting a lot of folks here where WPMU is above their knowledge level. I wonder if they've even run the regular Wordpress at any time in the past. WPMU is server software along the lines of Ensim or CPanel or Direct Admin. It's a device to create seperate accounts for folks. I know over in the support sites for those softwares, we don't have to tell folks 90% of the time "What's in your error logs?" or "What's you setup?" We do have to on occasion but not to this level that I'm seeing here.
I mean at least Bill knew what a plugin was and described what the method he was following to create his issue. That's better than most of the questions we get here. :)
I have over a dozen plugins (ie shortstat, sitewide, a theme counter, etc) I've written on my site that I would like to release here. Everyone of them needs no less then one line edited in the code with some of them a lot more. Not trying to be negative but I'm wondering if they would go over. I, for one, have no issue with editing code. I can picture some folks faces if I was to suggest that to people though.
But going back to the original question, I made a post here of a hacked version of ExtremeVideo that I use on my site that includes a download link for youtube. I don't know if you would be interested in such a thing.
Hope this helps,
-drmike