FWIW...I know I had a hell of a time figuring out how to post a video on here and I'm certain some have tried and given up. I'm not the tech'iest guy in the world and there's probably easier ways of doing it but thought I'd share how I did it.
Just plugging your camera into the USB on your computer, it will recognize the videos, just load the one you want into a saved file, like you would with a pic. You should be able to view it without the camera plugged in now.
I made a throw away, unimportant gmail account, it's free. Write down your sign in info as you probably won't use it that much. Then go to youtube and open an account. Also free. Be sure to choose public and not private or others won't be able to view them. When opening the account, link it to the throw away gmail account. Now just upload your video to youtube and it will give you the url, that's the http: address, write that down too. Now you should be able to view it on youtube.
Now when you want to post it on here, just hit the link button at the top, looks like a little chain, then enter the url address and load it.
Hope this might help someone dealing with the frustration of figuring it out. Beside's, I want to see more of your guy's videos.