EP installation SR1

Hi,

I have couple of question about Installation of Portal 6.0 SR1.

J2EE server 640 (SR1) is installed, Now

A) Portal 6.0 (SR1) first installed and then upgrade the J2EE server 640 to SP11 along with Portal to SP11.

B) Is it possible to Installed the J2EE server 640 SR1 and updated to SP11. Now Install the Portal SR1 an and update to SP11.

Thanks in advance,

Fareed