regarding microsoft dynamic SL

i have to setup microsoft dynamic SL 
i think below are basic requirement to configure Microsoft Dynamics SL 
1)Operating system-Windows Server 2008 Standard and Enterprise Edition R2 (64-bit only) 
2)Database-SQL Server 2008 Standard or Enterprise Edition (32-bit and 64-bit) 
3)IIS-Microsoft Internet Information Services (IIS) 6.0 or later and ASP.NET 2.0 
4)Microsoft Office Project 2007 
5).net-.NET Framework 2.0 
6)Microsoft Dynamics SL 
i have configured everything except Microsoft Dynamics SL unable to find it on net.please suggest me from where i can download this as well as anything else needed to configure Microsoft Dynamics SL.