Chile, are you on a normal browser? use the "more reply options".. You can attach a picture from your computer using the Attach file control under the screen you type in.
Or if the picture exists elswere on the net, or post the picture on flickr, photobucket etc and use the "forum link" option. Click the "image button" that is in the tools above the text, give the URL for the picture and voila.....
Flickr and Photobucket give you also an option to copy when you get the HTML / BB code straight away. If you copy that link it will automatically embed.
- chile likes this