That site looks too complicated to me but I'm sure some people will understand it.       About 18 months ago my teenage daughter showed me how to upload a photo (taken from my camera) onto the forum.  It's now second nature to me, even though I know nothing about technology, other than being able to touch-type and like handymaneastdulwich, I open up the photo in paint, but resize it to 10%.  Then there are a few more steps (like naming the photo) but it works for me.