Whoa, there. I realize you're new and probably haven't yet had time to read all the stickies, but there's a size limit for images here because some of our users are on severe data limits, or dial-up connections. Here's the stickie about it:
http://absolutewrite.com/forums/showthread.php?304595-FAQ-Image-Size-Guidelines
The basic allowed size is 400 by 400 pixels, which is this big:
Or, if it's a rectangle like a book cover, the same area in a different shape, thusly:
So if you'd resize your image, that'd be great. That way this board's moderator--not me--will not have to do a thing.