As the forum currently exists, you would post your photo to a site like Flikr (or to your blog) and then copy the URL (address) of the photo and then paste that URL into your message. To do that, you click the url button in the upper right corner, then you paste your photo's url, then you click the url button again in order to end the url string. Not too hard, but not obvious, either.
However, the site is going to be changed on Wednesday the 21st, so the method for posting photos might change, too. My advice would be to wait.
I am looking forward to your pictures! I have done so many modifications to the interior of my trailer that it looks kind of like a construction site -- some fabric might hide some of the holes in the wall.
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