Hi, I too was having problems uploading photos, until it was suggested that I try imageshack.us
All you need to do is join the site, upload a photo to image shack then open a thread on this site in a new window, copy the link in imageshack as instructed on a previous post, then paste in your A4all window, then go to preview and the image should be there. If you have photo editing tools reduce the size of the image to a more manageable size before uploading to imageshack.
I found imageshack very easy to use so keep at it and soon you'll be posting for fun!!