I am trying to install a driver called gspca1xx but it doesnt work

what do I do wrong?
vector:/~/Desktop/gspcav1-20070508
la:$ ls
Conexant/ Makefile.kld Sonix/ Transvision/ decoder/ gspca_core.c
Etoms/ Mars-Semi/ Sunplus/ Vimicro/ gspca.h utils/
Makefile* Pixart/ Sunplus-jpeg/ changelog gspca_build*
vector:/~/Desktop/gspcav1-20070508
la:$ make
make -C /lib/modules/`uname -r`/build SUBDIRS=/home/la/Desktop/gspcav1-20070508 CC=cc modules
make: *** /lib/modules/2.6.18.5/build: No such file or directory. Stop.
make: *** [default] Error 2
vector:/~/Desktop/gspcav1-20070508
la:$ make install
mkdir -p /lib/modules/`uname -r`/kernel/drivers/usb/media/
rm -f /lib/modules/`uname -r`/kernel/drivers/usb/media/spca5xx.ko
rm -f /lib/modules/`uname -r`/kernel/drivers/media/video/gspca.ko
install -c -m 0644 gspca.ko /lib/modules/`uname -r`/kernel/drivers/usb/media/
install: cannot stat `gspca.ko': No such file or directory
make: *** [install] Error 1
vector:/~/Desktop/gspcav1-20070508
la:$