When I go to localhost/~admin/ or 127.0.0.1/~admin/ my browser says:

"Forbidden

You don't have permission to access /~admin/ on this server."

How do I change this?!??!?! It's driving me nuts!

when I go to localhost or 127.0.0.1/ my browser says: "It Works!".

I'm running mac osx 10.8.

I created aliases in my .bash_profile file so that I can start, restart and stop Apache quickly:

alias startApache="sudo apachectl start"
alias stopApache="sudo apachectl stop"
alias restartApache="sudo apachectl restart"

In my /etc/apache2/httpd.conf file I turned on php5:

LoadModule php5_module        libexec/apache2/libphp5.so

I also made sure to change the permissions for my admin.conf file with this command in terminal:

sudo chmod 644 username.conf

This is my /etc/apache2/users/admin.conf:

<Directory "/Users/admin/Sites/">
        Options Indexes MultiViews
        AllowOverride All
        Order allow,deny
        Allow from all
</Directory>