I have read people suggesting a website to size the pictures right to get rid of the yellow stripe at the top of your screenshots. Most people use photobucket so there is an easier way. Before you upload your downloaded images. There is a small drop menu underneath the upload box, select the option "640x480 Large". Now when they are uploaded they will be slightly smaller and just the perfect size for forgehubs forums. And no more of those ugly yellow stripes over each pic.
I resized mine to 640x480, because pictures should be subject to a passing glance, not deep scrutiny. (Plus it's super annoying having my screen stretched, and I thought I would spare others of that.)