For complete information please refer to Microsoft's official documentation
Http://msdn2.microsoft.com/en-us/library/ms159772.aspx
The simple approach is to put C:/Program Files/microsoft SQL server/90/tools/reporting services/ The rswebparts.cab below SharePoint is copied to the server running SharePoint to run the Stsadm tool, registering the two Web Part inside
STSADM. Exe-o Addwppack-filename "c:/ Program Files/microsoft SQL server/90/tools/reporting services/sharepoint/rswebparts.cab "-globalinstall
This tool, if it's WSS2.0, will be here.
C:/Program Files/common files/microsoft shared/web Server Extensions/60/bin
If it's WSS3.0 or MOSS 2007, it'll be here.
C:/Program Files/common files/microsoft shared/web Server Extensions/12/bin can use the
In WSS 3.0, there is another, more complex way of reporting consolidation, which you can refer to here
Http://msdn2.microsoft.com/en-us/library/bb326358.aspx