JDBC Connection

Hi everybody, here's my poroblem:

Distibution - RH 7.1
JDK - 1.3.1


I try to connect to the pgsql data base with my application but all I get
it's the following exception
    java.lang.ClassNotFoundException: org.postgresql.Driver
which is thrown by
    Class.forName("org.postgresql.Driver");

I followed the instructions on the Programmer's Guide by exporting

    /usr/java/jdk1.3.1_01/lib/jdbc7.1-1.2.jar (the dir where I've put
the jdbc driver)

to my PATH.
When I echo the PATH I get the correct sequence.

Thanks for all the help you can give me.

Guido