my htaccess is pretty minimal.
AddType x-mapp-php5 .php
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
i have other blogs on the same server that work fine. ive done the plugin thing and all the steps in the article.