Please review http://www.betting-forum.com/ Although it is not new site I have made a lot of changes to the phpbb3 software. And a tip: IF you have gambling site you can add links via the signature, they are do follow, but only meaningful posts will stay, not some batant advertising.
The logo is in bad quality. Try to save as PNG instead of JPEG. I also didn't like the background. Perhaps try another one?