That's because they thought CamStudio is owned by eHelp.com.
However, I just added a filter, next time when a user ask a question about camstudio, robocapture etc, they will be redirected to this page: http://www.ehelp.com/core/askfilter?Ques=Question+about+CamStudio
Find your folder where you put your video. And put it on your desktop. Then go to youtube and click'Upload' Then click Desktop when asked to upload. Then Put the videos details. Thats it!