Did you even bother to read the first post? You can't make an HDR image with just one photo. If you wan't that halfassed photoshop stuff find another thread.
To contribute I found this on google, wish it were larger
http://cache.lifehacker.com/assets/resources/2006/10/hdr tutorial.png
I disagree... somewhat...
You can with one Raw image. It is more along the lines of tonemapping though. It gives pretty much the same effect.
Last edited: