Re: nvidia-installer (1.0-8174) fails when compiling kernel interface
I don't have a SuSE system in front of me to verify the correct behavior, however, it looks like you're pointing to two different kernel source paths inside of /lib/modules/`uname -r` :
build -> /usr/src/linux-2.6.13-15.7-obj/i386/default
source -> /usr/src/linux-2.6.13-15.7
Based on your error message, I'd suggest fixing the build symlink so that it points to /usr/src/linux-2.6.13-15.7/i386/default
If that doesn't fix things, then please post the nvidia installer log from /var/log.