I assume you're talking about THIS background?
I highly doubt you're goning to get a response from the person who made that, since it's from 2009. You can try sending a personal message to them (look for "Send this user a private message" on their profile).
I can see there's a link to the "geckowebdesign" site, maybe try there.
Also, we don't know if this picture is made by the uploader or it's reused from the internet and made into a background. Userlogos only provide logos/backgrounds for use with Firefox addon Fast Dial, all the logos belong to their respective owners.