Just looking at this guys detail who submitted a few days ago and the detail page has knocked his actual site of the top of G for his URL, check it out: http://www.google.co.uk/search?hl=e...n&q=website-hosting-advisor&btnG=Search&meta=
Congrats -- But that is not good mate He listed in your dir to improve his SERP --istead he got it down--ask him to remove the listing from your dir --if he wanted the top position --ASAP
After a while the link juice will push his listing to the top, I suspect the site is feeling the sandbox effect at the minute.
He's probably quite annoyed about that, but there's not a lot you could have done about it. His keyword density for that particular phrase is right down. As far as I can tell, it's a long page and he repeats it three times, whereas your detail page has it three times on a much shorter page. You could add a bit more fluff to your details page to prevent this happening again, or just let him work it out himself.
LOLz.... this is really weird for the owner of the guy who submitted must be cursing himself for submitting here anyways still has a backlink