Closed down my site as being found for wrong reasons :(

I had to close down my site as my post about it in wordpress support site has higher search engine rankings than the site itself. Doh!

If anyone can let me know how I can make my site figure higher than the support site when searching for my site please let me know.

I’m ok with the wordpress support thread being found by a search for the particular issue I posted as that’s useful to other wordpress users
Thanks