what distro are you using?
i just got them working on redhat 8.0 last nigh, ill post the instructions, or possibly the rebuilt rpms for you if you use it.
redhat 8 nolonger has a XF86Conig-4 file, as there is not X version 3.6 included anymore. the -4 was there to seperate each version.
use XF86Config now