Alright I'm almost 100% sure that what is messing my site up is the .htaccess file.
What I have is:
RewriteEngine On
RewriteBase /blog/
# RewriteBase /blog/
RewriteRule . /blog/ [L]
# Rewrite http://www.domain.com to domain.com
RewriteCond %{HTTP_HOST} ^www\.(.*)
RewriteRule ^(.*) http://%1/$1 [R,L]
#uploaded files
RewriteRule ^(.*)?/?files/(.*) wp-content/blogs.php?file=$2 [L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
Now my problem comes in when I try to navigate to http://mydomain/blog/index.php
It automatically forwards me to http://www.mydomain.com
No idea why. I'm not good with the mod_rewrite and .htaccess stuff. This prevents me from reaching my wordpressmu site.
Any help?