1. I cant believe swaret/slapt-get (not sure what xquizit uses) slips an X update in so easily - it's madness. THings like that should only be upp-ed by hands with full knowledge of what might happen. Stupid, stupid, stupid.
2. If you still have lilo working:
a. at lilo prompt choose one of the options and add the following to it: single (so it looks like ":Linux2.4.27-IDE single") This will give you CLI with root login
b. run the editor of your choice (mine is "mc"

try it, you'll love it. It has a built in file manager for console

)
c. edit /etc/inittab line so it looks like bellow (that is for you in case you need to reboot and reboot and reboot again after messing up xorg.conf)
Code:
# Default runlevel. (Do not set to 0 or 6)
id:3:initdefault:
d. restart
e. run either of the: xorgcfg xorgconfig xorgsetup
(I like xorgconfig, but it is the least user friendly)
f. run startx
g. if X just complains, go e. and tweak, if crashes, go d.
3. Stop STOP
STOP using swaret/slapt-get so recklessly!