jdbc connection from Eomodeler to postgresql 7.2.3

When I try to connect to Postgresql /7.2.3/ from EOModeler /Webobjects
5.1.4/ I am getting the following message:

Connection Failure
JDBC connection failed for driver :'org.postgresql.Driver'. Driver not
found in Java Runtime! Please verify your CLASSPATH environment
variable. The current CLASSPATH for your application is :
/Developer/Applications/EOModeler.app/Contents/Resources/Java/
eomodeler.zip:/Users/janos/Library/Java:/Library/Java:/System/Library/
Java:/Network/Library/Java:/System/Library/Frameworks/JavaVM.framework/
Classes/classes.jar:/System/Library/Frameworks/JavaVM.framework/
Classes/ui.jar:/Developer/Applications/EOModeler.app/Contents/
Resources/Java/eomodeler.zip

I compiled postgresql with the --with-java option.  I am using the
following parameters when I try to connect:

user:  postgres
password:  postgres
URL:  jdbc:postgresql:test

If I specify the driver as org.postgresql.Driver, the error message is
the same.  In the console I can see the message:

Initializing PostgresqlPlugin

I downloaded the PosgresqlPluginBundle from softrack, compiled it and
placed the product into the /Developer/EOMBundles directory.  I also
copied postgresql.jar into the /Library/java folder, so it is in the
CLASSPATH for EOModeler.

What should I do different ?

János
P.S.  postgresql is running :) From top:
17261 postgres     0.0%  0:00.00   1     8    17    84K  1.61M   228K
13.4M
17260 postgres     0.0%  0:00.01   1     8    18    32K  1.61M   156K
14.4M
17259 postgres     0.0%  0:00.81   1    10    17    40K  1.61M   760K
13.4M