WAS 6.40 and EP6.0

Hi,

I am new to SAP WAS J2EE. I am trying to install EP6.0 on the SAP WAS 6.40. Is the PDK6.0(portal server) a different software which has to be installed before we can import the business packages available on iviewstudio website. or is it that the PDK comes built in into the new WAS 6.40. Any help regarding is appreciated.

Thanks in Advance

Sravan