You can download it from here: http://community.office365.com/en-us/f/183/p/1541/5095.aspx#5095
About the document
This document presents the Office 365 Beta for enterprises deployment process in a manner that explains both important deployment concepts as well as detailed procedures. It is also intentionally organized into the sections that provide specific types of information to specific types of people in your organization. Here is a quick overview of what you will find:
- Deployment Overview section. This material provides the high-level look at the deployment and organizational requirements to deploy Office 365 Beta for enterprises. It has valuable information for your IT decision-makers, program managers, and technical implementation leads.
- Plan and Prepare sections. These sections describe the particular tasks and activities required to get ready and fully implement your Office 365 Beta for enterprises deployment. They are generally presented in the order in which you address them during your deployment. Topics discussed in the Plan section generally reappear in the Prepare section with instructions for carrying out the task. Within both sections is content that will concern specific subject matter experts in your organization.
- Migrate section. This section describes the steps for moving your users’ mailboxes to Office 365 Beta for enterprises so you can begin using the Office 365 Beta services as part of your production environment.