benevolent001 - 8:37 am on Oct 25, 2009 (gmt 0) Hope it helps
Forums can be bandwidth eaters due to spiders which crawl them. I suggest you to compress the image of header , 137kb is HUGE image. Although at one time visit image will be cached by browsers but , It can be easily compressed to 30% of its size without any noticeable loss in quality. The purpose of forum header image is not really impressive , as content in topics is what the main useful information is for the users. Just keep that in mind.
Hope it helps