Installing Required Tools
First, you’ll need to make sure you have all the required software installed on your computer. This article assumes you have Team Foundation Server completely installed on a server that you can access. So this section is just about installing the tools you’ll need in order to communicate with Team Foundation Server’s data stores and to create reports. You will need the following:
Excel 2007 or Excel 2010
Report Builder 2.0/ 3.0
Config your web site.
1. Go to web site: Site: http://[server name]/Reports/Pages/Folder.aspx
2. Click Site Settings in right panel.
3. Click Security Tab in left navigator panel.
4. Click New Role Assignment to add special people and then Click button OK.
Note: You can see Report Builder in this site, if you listed Security tab.
[tfs] How to add report builder into report site
原文：http://blog.csdn.net/wzhiu/article/details/19903809