Seeker

1.) Click "Reply to Thread".
2.) Below the box that appears is an option on the right side called "Go Advanced". Select this.
3.) When the page reloads, you will see an icon near the end of the row of buttons atop the text area that looks like a file with a paperclip on it. Click.
4.) A dialog "Manage Attachments" will pop up.* Choose a one or more files using this, and press the "Upload" button.
5.) Close the dialog, and click "Submit Reply".

The instructions ...

First thing you need to understand is anything posted on YouTube with the share function means it can be reposted and embedded into posts here. Secondly all YouTube posts should be made in the public area of the site. Lastly YouTube links should be embedded into the post and not posted as a link.

Example one - DO NOT do it this way
http://www.youtube.com/watch?v=x2_LWLNetIQ

Example two - YES do it this way. Click this icon from the menu video.pngthen ...