Black Ops Render Clips Upload To Youtube?

I tried to upload a video clip from my fileshare on Black Ops to Youtube, but it didn't show up for some reason. I linked my account to Youtube from the Call of Duty website. But when I looked in the Theater on COD site, their wasn't any video clips. Their were the screenshots I took but no videos. I rendered them, but for some reason it didn't show. And yes my videos were less than 30 seconds. And they were AMAZING Tomahawk Kills I got. =/ Why didn't the videos show? I really wanna upload them to Youtube.