Nice work victor, but one thing though, in the tap where it says like Live For Speed - Reply To Topic to the left of it is still the Vbulletin logo. Also where the URL is theirs the vbulletin logo.
Upload a favicon.ico to the root directory of your website, that's it.
Icon must be 16*16 pixels. 16 colors will work definitely, not sure about 256. Google for a free icon editor if your paint program can't make them directly.
The icon usually stays if you have an OLD favorite saved somewhere and use it often. Just delete the old favorite/bookmark and make a new one, that fixes it for me if the favicon gets messed. No need to clear cache usually.