s I took:
1) Download and untar the file gspcav120071224.tar.gz:
wget -c http://mxhaard.free.fr/spca50x/Download/gspcav1-20071224.tar.gz
tar xvfz gspcav120071224.tar.gz
2) Compile and install the driver:
<code>cd gspcav1-20071224
make clean
make
sudo make install</code>