The forum software is particular about the size of photos, but you can link a photo of more or less any size that's hosted somewhere else.
I have a free account at photobucket
where I upload pictures I want to share on the forums. Once the photo is on photobucket, you click on the "direct link" text and it'll copy to your clipboard, and then just click the square button that looks like a yellow sky with mountains. That'll bring up a window for you to paste in the link for your picture and you're in business.
I'm looking forward to the pictures, I got a quote from JPA about drapes for my Argosy, but I have some other financial priorities and the drapes my trailer's PO put in are at least good enough to keep me from exposing myself to the whole campground while changing my clothes.