paraphrased from the ARFCOM Help Pages:
In order to display a picture in a thread it must be hosted online. You cannot directly post a picture from your computer hard drive.
Once your picture is hosted online, copy the URL for it.
In your message, type [ img] before the URL and [ /img] after the url.
- Example [ img]URL for your picture[ /img]
I purposely put spaces between the bracket and the "img" to prevent it from turning into a hot link in this message. Leave the spaces out when you type it in your message.
If you want to link to a website rather then display a picture, simply type "url" between the brackets instead of "img" -- like this: [ url]website address[ /url]
Again - leave out the spaces after the brackets in your message.
For your PTR video, I used the website link method, not the picture link.