Hi Jawwad,
You should be able to find the install steps specific for MSCS/SAP ASE in the Install Guide for SAP NW 7.x (ABAP/JAVA on Windows) : SAP Sybase ASE using Software Provisioning Manager 1.0 -- available on SAP SMP under "SAP Components->SL Toolset"->Software Logistics Toolset 1.0->System Provisioning".
Regards,
Madhvi