I installed Ubuntu 10.4 then I installed Bitnami LAMP stack then I installed bitnami wordpress module then I tried to make the site into a multisite by following these instructions:

http://wiki.bitnami.org/Applications/BitNami_WordPress_Multisite#How_to_add_several_WordPress_Multisite_blogs_with_different_domains.3f

AND

http://wiki.bitnami.org/Applications/BitNami_WordPress_Multisite

I can elaborate if needed: I enabled multisite in my wp-config.php file. Then I created a network using the wordpress dashboard. I was given two blocks of text to copy and paste 1 block into my wp-config.php file and one into my .htaccess file. I did that and now I get this:

When I go to my mywebsite.com I get this (this was there before I switched to multisite):

If I go to mywebsite.com/wordpress I get this (this used to be a functioning wordpress theme):

If I click on "My Blog" it redirects to 1mywebsite.com (where the "1" came from I have no idea)

If I try to login by going to mywebsite.com/wordpress/wp-login I get this:

and if I enter my user and password it redirects me to mywebsite.com/wp-login.php and gives me "Not Found" The requested URL /wp-login.php was not found on this server.

NameVirtualHost *:80
    <VirtualHost *:80>
    DocumentRoot /opt/lampstack-5.3.16-0/apps/wordpress
    ServerName mywebsite.com
    ServerAlias www.mywebsite.com
</VirtualHost>