I see that I have the xserver-xorg-input-synaptics driver installed. That driver technically has all the capabilities I'm looking for on the hardware that I have, but I don't know where the config file is, nor how to configure it correctly. I'm used to GNOME, where I had a rich GUI front-end for mouse config. Simple Mouse is... well, it's simple. I appreciate the thorough work to make lightweight applications for Fluxbox CE (w00t, kendall!), but in this case, it's not quite enough.
I should be more specific: I would normally edit the xorg.conf file, as that's where the synaptics driver settings are normally kept. But it's not in /etc/X11/, and the only thing Catfish turns up matching xorg.conf is a .gz file in /usr/share/.
So the question is, how do I go about manually editing mouse behavior in Fluxbox?