Simultaneously press the power + home button on the phone.
Please host pictures on a site such as Photobucket or Picasa, and then use the insert image tool above to add them to your post.
If you use any cool and/or interesting themes, homescreen replacements, or widgets, please list them in your post also.
Thanks for the info on taking a screenshot. I'm sure to many its common sense but I dont use things like that often so never looked.