Okay... You really didn't need to start your install over again when you couldn't get flux to run. My best suggestion is to print out the Desktop Configuration Guide, and follow it word for word. You can't go wrong.
If you don't want to do that, the quick and dirty is:
cd /usr/bin
./xf86config //if you want to try the graphical setup, I believe it is 'xf86cfg'
nano -w /etc/X11/XF86Config //(make sure everything is okay)
emerge superadduser
superadduser //(create your normal username - make sure you add it to the secondary user group 'wheel')
logout
2. Login as the user you just created
startx //This should pop up an ugly X screen. it works. yay!)
3. Open up an xterm window:
su //(and enter your root password)
emerge fluxbox
4. Edit your rc.conf to tell it to use flux
nano -w /etc/rc.conf
Scroll to the bottom of the document, add the following line:
XSESSION="fluxbox"
Save and exit nano
5. exit X by pressing CTRL-ALT-BACKSPACE
startx
Hope that sends you in the right direction. If you still have problems, check out forums.gentoo.org