I know this is an old topic but I'm currently experiencing the same problem. I found the E-mail section but it doesn't let me change it.
I noticed the following on the password section, however:
"You must confirm your current password if you wish to change it or alter your e-mail address
So I tried typing in my password there and pressing enter, to no avail. The restriction remained so I tried a few more times with no results.
_________________Villi and the Voice - a scrollventure.