download XF86
 

Yeah

Were can i dowload XF86config and setup.

were? where?

what do you actaully want? XF86Config is the configuration file, which obviously you don't down load, it is created for you by whatever configuration program you use. if you have slack's X packages installed then the will contain the estup utility. you're presumably just not finding it on your path or something. try under /usr/X11R6/bin/xf86config

And if you don't actually have XFree86, you can always download it from www.xfree86.org