http://msdn.microsoft.com/en-us/library/ms162837.aspx
How to: Create an Aggregate Report for Team System using Report Designer and the Analysis Services Database
How to: Grant Access to the Databases of the Data Warehouse for Team System
How to: Create a Report Server Project for Team System
Managing Reports in Team Explorer
How to: Set Team Foundation Server Project Lead Permissions
Choosing the Source of Data in a Report for Team System
Choosing a Tool to Create Reports for Team System

http://tfsguide.codeplex.com/Wiki/View.aspx?title=Chapter%2010%20-%20Lar... for large teams using tfs.

Here is a piece on # of projects and some sql queries. http://msdn.microsoft.com/en-us/library/aa974183(VS.80).aspx

Here are some links:
A slide show that is a good beginning:
http://nwalsh.com/docs/tutorials/xsl/xsl/slides.html
The wikipedia entry:
http://en.wikipedia.org/wiki/XSLT

XML/XSL are important to be able to receive and send information.

Here is a way to transform a Microsoft Developers Studio project: (remove te spaces betwwen the <

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet xmlns:xsl='http://www.w3.org/1999/XSL/Transform' version='1.0'>
<xsl:variable name="newline">&#xA;< /xsl:variable>
<xsl:output method="text"/>
<xsl:strip-space elements="*" />
<xsl:template match="VisualStudioProject">
<xsl:value-of select="@Name" />
<xsl:text>&#xA;< /xsl:text>
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="Configurations/Configuration">
<xsl:value-of select="@Name"/>