480x640 pics aint hard to do but you get much bigger and it throws the borders of the thread out of whack and you have to scroll left and right to read long sentences and every body hollers at bob d..
bob,
you post the picture on the web somewhere like pictrail, then copy the image url address then on the quick reply window you use the yellow icon above

click the icon and paste the image url in the box..
thats all there is to it,,
you can do the same with images in the users gallery but size really matters