I got this plugin to work a year ago, but now I have changed server and installed the plugin again. Today I checked the flv video and it doesn't work.
Mozilla 3.6.8 and latest WordPress. It asked me to download the latest Adobe Flash Player, Version 10,1,82,76 installed successfully. I am using the plugin in conjunction with PJW Mime Config (deactivating makes no difference).
However, the flv doesn't display inline, but only as a link to click and open.
I tried it with the twentyten theme as well as with IE7, same thing.
Please refer to http://yabbox.com/2009/11/media/ for details.
A [quicktime] link will work ok.