The photos that are added using the "Add image to post" easy link are displayed as thumbnails (not "pin pricks" Nichola, what is it with women and size) - this is helpful as it prevents the five mile wide photos we've all seen that send us scrolling towards China to see them. The ones added at full size already are posted in the traditional fashion like the old days - using the [/url] type tags - as was on the previous style of forum.

and

In case anyone wasn't aware, the full size image can be seen by clicking on the
pin pric thumbnail.
The poster of the thumbnail can choose the size of their clicked on image when adding the photo (do not resize, 640 x 480 etc)