The hyperpen xf86 driver doesn't work as is in RH8. I verified the soft link to HyperPen_mod.so works. RH9 also has 'hyperpen_mod.so' but I didn't confirm the problem
/usr/X11R6/lib/modules/input/hyperpen_drv.o is the driver that is shipped with Red Hat Linux, and it is the stock unpatched XFree86 hyperpen driver. The driver source code is identical in XFree86 4.2.x and 4.3.0 (it hasn't changed in ages). I am unable to find any XFree86 supplied file named HyperPen_mod.so in the files we ship, and am not quite sure about the soft link you refer to. Perhaps you are using some kind of 3rd party driver? My recommendation at this point however, is to upgrade to a currently supported OS release, and if you have a problem with the hyperpen driver supplied with the OS, with no 3rd party drivers being used, please report the problem upstream at http://bugs.xfree86.org so that the upstream driver owner is aware of the issue and can investigate and/or fix the problem, as we do not have this hardware, and supply this driver essentially as-is. If the driver is just completely broken and unuseable, please let me know so I can just remove it rather than shipping something nobody can use anyway. Closing bug as WONTFIX.