Lakes:
Ah, Ok, I rescale my images before putting them on-line with photobucket or for forum images I use http://imgur.com/ as you can drag your images onto it and it gives you the correct bb code link to paste into the forum.
Thanks Lakes. As we supposed, I will have to upload the images with the right size to the web and then I would have to link them from the forum.
I will use the account that I have in Flickr to do it.
Next images will be the first ones that I will do it (in a few days I will publish the final boards with its connections and features).