Reply to Re: green mushrooms problem
If you don't have an account, just leave the password field blank.
The green mushroom quest isn't required though, but completing it is very useful. Usually in SoB there's another way to get the same item/spell/whatever later on, if you missed out on a previous quest, although it might be a bit more difficult. That's the case with this quest too, so you don't have to start all over again.