problems after switching from Yahoo webhosting

I switched my hosting from Yahoo to Bluehost. I transferred the files, database, and wp-config just fine – almost. You can see the blog here…
http://www.insuranceshoppers.net/blog1/

As you can see, it shows up just fine. The design looks right and all the posts are there. The problems are:

– all of the posts are now “uncategorized”. Although, when I go to “manage” -> “categories”, each category still seems to have the correct number showing in the “posts” column.

– yahoo didn’t have .htaccess – they had their own “customizable permalinks” plugin. I’ve disabled and removed that plugin, added an .htaccess file as such:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

but it still won’t let me choose anything but the “default” link structure.

– also, a lot of comments are now missing. The post they were in still says “x comments”, but they aren’t there. I’m sure I can’t do anything about that though 🙁