Did some more testing and recoding, and version 2 of the image resize code is now in place. If an image is greater than 630-pixels wide it will be auto-resized in the post display. Clicking on the image will bring it up in another browser window so that it can be seen at full size. I've tested this quite a bit and it works in IE7, IE6, Firefox, Netscape, Safari, and Konqueror.
It DOES NOT currently work in Opera though. Opera users will still get the image at full size along with horizontal scrollbars and distorted post table appearance. Oh well, I've got 98% of people fixed up.
Test image (1400 x 1050) below...
