If you have Microsoft Office SharePoint Portal Server (SPS) 2003 deployed in your organization, you need some way to know how your SharePoint sites are being used and whether they are configured for efficient operation.
Installation and setup consists of:
  • Having an SPS and SQL installation
  • Install OLAP
  • Install Reporting services and SP2
  • Install Log Parser
Once the prep work is done, your ready to install the Report Pack. Be carefull to set the data source for each report after you import the reports.
Another good link is as follows.