Ok. You're in a mess. I don't know how bad it is. I take it either /lib/modules or your initrd are hosed. I find it difficult to understand what you're writing.
If you have wiped the whole system with no backup, reinstall. If you have a poor backup, lay that on and try a minimal install over it. I personally would wipe & reinstall as the fastest way forward for me, although it mightn't be for you.
The let's get detailed. If it wou't boot, tell us what it says. It the nic isn't there, tell us the error. We need information. To get you online we need to know What type of network have you?