Hi, Leroy...
according the the techs, uploading videos directly from your computer to a thread (without first uploading the video) wasn't possible earlier either.
but you CAN upload your vid to you tube, or RCUvideos.com among others.
http://www.rcuniverse.com/forum/foru...m-here-34.html
(check post # 841 / page 34)
"Unfortunately, it is not possible; was not previously possible. Videos on RCU were/are hosted via
http://www.rcuvideos.com"
for what it's worth, I don't think there are many (if any) forums that allow uploading videos directly into a thread.