Hi Sriharshaa,
You can find all the stencils in .BMP,.TIF,.EPS, Powerpoint, and Visio here:
http://www.cisco.com/web/about/ac50/ac47/2.html
It probably won't be listed as a MCS server, but rather as "Callmanager Server" "Communications Server" or "Unity", etc.
The MCS server is just hardware, you will have better luck finding the software on the MCS.
-nick