If you view your image now it fits the page

http://www.vatortrader.com/forums/site_images/Singapore_Skyline_Panorama1.jpg

800px × 200px (scaled to 784px × 196px)

But on your forums it is stretch because of your coding

Quote
<img src="/forums/site_images/Singapore_Skyline_Panorama1.jpg" width="1740" height="210" />

swap out the height and width in the code to 784px × 196px and it should be fixed.