Run xf86config. This is where you set up your X server. This can be frustrating. Read a lot. A great place to learn about using xf86config is here. I like to make sure X is working here before I go any further. If you are new to Linux, it sure is helpful to have X up and running right off the bat. One tip, if you have a scroll wheel mouse and it isn't scrolling properly, edit your xf86config file to read something like this:
Section "InputDevice"
# Identifier and driver
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/mouse"
Option "ZAxisMapping" "4 5"
That last line is the important one you may have to add.