• Open Debian chroot
• Edit file sources.list (vim /etc/apt/sources.list)
• Uncomment line 8 (deb http://http.us.debian.org/debian sid main contrib non-free), save and close
• Run "apt-get update"
• Run "apt-get install e17"
• In /usr/bin create a file named "starte17" containing "DISPLAY=:1 enlightenment_start" (vim /usr/bin/starte17, insert text, save and close) and make it executable ("chmod +x starte17")
• Edit the file xephwm5 (vim /usr/bin/xephwm5) and change WMEXEC="startlxde1" to WMEXEC="starte17"
• Exit Debian chroot
• Edit debian-lxde (vim /usr/bin/debian-lxde) and apply the same change (change WMEXEC="startlxde1" to WMEXEC="starte17")
• Start Easy Debian and enjoy!

If you have any problem feel free to ask

P.s.: I suggest to re-comment sid repo in sources.list after successfull installation of e17...
P.p.s.: it seems to work pretty well, but I can't get keyboard focus

EDIT
Temporary workaround for keyboard focus: while in Easy Debian, press power button (short press), start phone application, access menu and then launch "Fix LXDE kbd". Now you have keyboard fully functional and you can press ctrl+back to return to Maemo .