1. Installing Web Parts
STSADM.EXE -o addwppack -filename "C:\ Program Files\Microsoft SQL Server\100\Tools\Reporting Services\SharePoint\RSWebParts.cab" -globalinstall

2. Adding & Configuring Web Parts
a. Report Explorer
    Report Manager URL: http://<servername>/reports
    Start Path: /Folders
b. Report Viewer
    Report Manager URL: http://<servername>/reports
    Report Path: /Folders/ReportName