Luis, what a shame!
I don't know whether your screen can be replaced. I just checked ebay to see if there are any good deals now on another EE for you. Nothing great, although there are a few for sale.
I saw, too, that someone else is selling an EE with a broken e-ink screen, so you could at least sell yours for parts if you can't get it fixed. Does the LCD side still work?
Anybody else know about fixing e-ink screens, or who to ask??
One way or another, I hope it works out for you, thaldric!