www.devstack.org is your friend. Otherwise can you be little more specific with what you are seeking?

First setup a VM with about 10 GB of storage. Explaining here for Ubuntu 12.04, though it should be easy to adapt to other OS's.

First, configure proxy for apt, bash and git if you are behind a proxy.

Then, clone the repository using the command:

git clone git://github.com/openstack-dev/devstack.git

And then cd to the directory where this is cloned and then:

./stack.sh

This may take some time depending upon your network configuration- roughly 2 hours on a 200 kbps connection.

If you get a message such as this on completion:

Horizon is now available at http://10.1.119.60/
Keystone is serving at http://10.1.119.60:5000/v2.0/
Examples on using novaclient command line is in exercise.sh
The default users are: admin and demo
The password: password
This is your host ip: 10.1.119.60
stack.sh completed in 257 seconds.

Then the installation was successful and openstack can be accessed using horizon on a browser with the URL as 10.1.119.60 or whatever IP address you get at the respective location.

I posted a guide on my facebook page (Cloud Computing Training) that walks the reader through steps to get devstack up and running. Screenshots are included.

How to download the guide from facebook page:

1. Click on the tab "Cloud Setup Guide"
2. Click the like button and then click on the page "DevStack Cloud Setup". You will be able to read or download the guide.