Ok nexus s 4g now rooted what now?

[DeCourseyyy]

could someone please give me instructions on how to flash this 2.3.5 rom onto my phone, I don't want to do anything without being certain, thank you.

Connect you phone via USB and place the ROM on the root of your sd card.

Turn off your phone

Boot your phone into recovery (hold down the power and the volume)

Choose recovery

Choose install zip from sd card

Choose your ROM