Mad errors after install

I have a bunch of unfriendly looking errors on index.php, after install and adding one post:
Notice: Undefined variable: showposts in /var/www/htdocs/croyle.org/Blog.d/blog.header.php on line 61
Notice: Undefined variable: user_ID in /var/www/htdocs/croyle.org/Blog.d/blog.header.php on line 258
Notice: Undefined variable: tags in /var/www/htdocs/croyle.org/Blog.d/b2-include/b2template.functions.php on line 1253
Notice: Undefined variable: output in /var/www/htdocs/croyle.org/Blog.d/b2-include/b2functions.php on line 65
Aaron’s First Blog
I also had warnings on the admin pages:
Notice: Undefined variable: form_prevstatus in /var/www/htdocs/croyle.org/Blog.d/wp-admin/b2edit.form.php on line 147
in the select box:
<b>Notice</b>: Undefined variable: post_status in <b>/var/www/htdocs/croyle.org/Blog.d/wp-admin/b2edit.form.php</b> on line <b>67</b>
>Publish</option>
<option value=”draft”
<b>Notice</b>: Undefined variable: post_status in <b>/var/www/htdocs/croyle.org/Blog.d/wp-admin/b2edit.form.php</b> on line <b>68</b>
>Draft</option>
<option value=”private”
<b>Notice</b>: Undefined variable: post_status in <b>/var/www/htdocs/croyle.org/Blog.d/wp-admin/b2edit.form.php</b> on line <b>69</b>
>Private</option>