Also, I'm wondering why you would need to type startx? Once you're in enlightenment, you should see a greenish background (brushed metal theme, I think) and there is an iconbox in the lower right-hand corner, and your standard virtual desktops in the lower left-hand corner. If you don't see this, you're missing some other items related to enlightenment. To get the complete list, this is what I did:
Open a terminal window, and type su + password.
Type apt-cache search enlightenment >enlightenment.txt (this outputs a list of packages you need for enlightenment).
Apt-get install most of the packages in the list. Some you don't need, like the wmbutton stuff. Some will suggest additional packages not covered in the list, so watch out for those. The one other package I recommend you don't install is eeyes. It's huge, and it would take out half of kde to install it, but it's your decision.
Exit the terminal
Log out
At the login screen, enter your password for your account and scroll down to enlightenment in the list of window managers.
Press enter and you're in enlightenment.
Now wasn't that easy as pie?