I tried: myipaddress/pmm & hostname/pmm
Installation went fine here is how I did it on my server. Sorry I'm new to php5.3 and fuel php.
sudo apt-get install php5 php5-cli apache2 mysql-server phpmyadmin curl vim git-core
Added mysql database as need.
curl get.fuelphp.com/oil | sh
git clone git://github.com/connors511/PMM.git
git submod[/php]ule init
git submodule update
oil refine install