Originally Posted by
anabolism
Upload it somewhere (e.g., Picasa, SmugMug, etc.), get a "share" URL for the photo, click the mountain icon when posting a reply, paste the URL inside the [IMG] ... [/IMG] tags.
You don't even have to do that anymore as images can now be posted directly to FT posts using the "Attach Files" function. There was briefly an "Announcement" sticky at the top of all forums but I see it's gone now. This blog post though has a nice step-by-step for those who need detailed instructions:
http://thegate.boardingarea.com/imag...nto-flyertalk/