Information about SAP Netweawer CE 7.1

I am going to install SAP Netweawer CE 7.1,But this requirement is to intall SAP Netweawer CE 7.1 with SP 8.

I have checked in Service market place there we can find only CE 7.1 with SP 5 guides not CE 7.1 with SP8.

My question is that do i need to install SAPNetweawer CE 7.1 with SP 5 then through patched i will take system to SP 8?

What is the requirement to install SAP Netweawer CE 7.1 in terms of OS and Database(Windows,DB2)?