Wordpress 2.1 upgrade error

Can someone explain what this means?

"The problem was you don’t own directory /home/wendyod10/thingsinyourhead.com

Please correct this and go to our web panel and re-submit your
wordpress installation request."

I successfully upgraded a test blog, (test.thingsinyourhead.com) and there were no problems.

Since I registered the site through DH and they host my website, I am a little unsure what this means. Oh, and I upgraded to 2.0.7 with no problem at all.