Driver fails to connect

Hi.

Using J2sdk1.4.0, Postgresql7.2, and a patch, 1.4b3.

Try: DriverManager.getConnection("jdbc:postgresql:Paul","Paul","")

Get: java.lang.NoSuchFieldError: current_row
at org.postgresql.Driver.connect(source file unknown, pc 0x82063333)

The preceding is preceded by (18 iterations of) Warning: Major/Minor version
number mismatch.

I'm sure this is some sort of configuration glitch. I have postgresql.jar
and pgjdbc2.jar in the same directory which is in my classpath. What am I
missing/what did I not do/what did I not do that I should have?

Thanks,
Paul