Maybe. Your $baseurl in your conf/_basic_config.php file obviously doesn't have the www thing in it, so that's cool. What do you have on your App settings tab for "default blog to display"? I think that'll be the question that'll get you where you want to be because of what I see at http://writingrevolt.com/blog/summary.php . Also are you using stub files? Perhaps using a stub called "index.php"? I'm trying to figure out your configuration by poking around and looking for 'usual and customary' files, so bear with me.

BTW this has nothing to do with using blog #1 as your primary blog. You've only got 2 (as far as I can tell) and both are identical. Therefore ... ?

Actually this is kind of interesting because even if I add "index.php" to the URL with the www in it I get your blog in the originalb2 skin. Sorta like your server has decided to do something different depending on if there is a www the URL. Have you considered changing that blog's skin to your personalized version of basin? I think if you do that no one will be able to notice the difference.