Q: what do i need to install after i install windows 7?

what do i need to install after i install windows 7?

I am trying to install windows 7 on my mac. i am following the steps online. i have already install windows 7. but i need to install one more thing to make my internet and everything work. (a boot camp or device driver? i am not sure what is this call) so i bought my mac 3 years ago it comes with a CD disk. I need a newer version of that. i am not sure where can i download it?