I realize that this is a totally newbie question but here goes.

I've rooted my Hero and now I want to try out a custom rom. My question is this, once I flash the custom rom and it boots up, does the phone work automatically just as when I updated from 1.5 to 2.1? I mean the phone functions, not the android operating system.

As I said, this may be a silly question but I haven't seen it actually addressed in the forums.

Thanks for any help with this question!