Over the last couple of weeks I have seen some of the clients that we work with always asking for Facebook timeline covers, and we give it to them. However I still see that small business owners still struggling with this and decided to create a template with guides. All of the information for the Facebook header as well as exact dimensions are in the .psd file.
Please note that the best size to upload your header picture should be 180px square but it will be resized to 16px square by Facebook.
Here is the link to download the template for the Facebook Timeline cover.
http://www.michaelaliphotography.com/wordpressdownloads/FacebookTimelineGuide.psd
Enjoy! And any questions please feel free to contact me.