WordPress through A Photo Folio

I have word press through the website i purchased (suebarr.com/blog). When i try to use something like ‘Intense Debate’ comments on another blog, i attempt to log in using my word press log in, but it tells me i am using the wrong info. The same goes for when i go to wordpress.com. The log in on the top right of the page tells me that my info is incorrect. When i log into my admin page, i have no problems at all. Any ideas?