Error while make all in SLES 9.0

Hello there, I download the latest SuSE Linux Enterprize Server driver for Digi RAS 8 - 40002059_h.tar.gz

I put it to /root/distrib and print a commands :
cd /root/distrib
tar xvfz 40002059_h.tar.gz
cd ./dgdm-1.1
make all

and have ERROR :
#make all
(cd driver; make all)
make[1]: Entering directory /root/distrib/dgdm-1.1/driver' make -C /lib/modules/2.6.5-7.145-default/build SUBDIRS=$PWD modules make[2]: Entering directory /usr/src/linux-2.6.5-7.145-obj/i386/default’
make -C …/…/…/linux-2.6.5-7.145 O=…/linux-2.6.5-7.145-obj/i386/default modul
/root/distrib/dgdm-1.1/driver/Makefile:5: /usr/src/linux-2.6.5-7.145/…/Makefile
.inc: No such file or directory
make[5]: *** No rule to make target /usr/src/linux-2.6.5-7.145/../' . Stop. make[4]: *** [_module_/root/distrib/dgdm-1.1/driver] Error 2 make[3]: *** [modules] Error 2 make[2]: *** [modules] Error 2 make[2]: Leaving directory /usr/src/linux-2.6.5-7.145-obj/i386/default’
make[1]: *** [build] Error 2
make[1]: Leaving directory `/root/distrib/dgdm-1.1/driver’
make: *** [all] Error 2

How to compile the driver ?

Please contact Digi Technical Support for a possible beta driver.