Just a small Q where did you get the driver  from. I
dont remember seeing any zip files in my unix oracle
installation.

Can you unzip the zip file  into a temporary directory
and then modify the classpath  variable to point to
this directory...ie if you have unzipped it into
/usr/marcus/oracledriver/

in your classpath point to /usr/marcus/oracledriver/
and remove any reference to the zip file and can you
have a go at it...