precompiled jdbc with DataSource...why not?

After working almost constantly for the past two days and nights (mostly
searching web/mail archives for answers, I understand following is the
'DataSource' situation:
-DataSource is not available for download from anywhere, it must be
compiled with  javax.sql.* in classpath
-The driver won't compile at all if one has JDK 1.4 (I have 1.4_01)

Unfortunately, I would like to use JSP's JSTL SQL (tag library..with
tomcat as app server) which only accepts datasources.

It seems like someone compiling a driver with datasource stuff built into
it (even if it is marked as 'beta') and making it available will solve
LOTS of problems.

Is there a problem with this solution? If so, can someone suggest an
alternative please?

btw: I tried another pg jdbc driver but that is giving me a whole
different set of problems.  Thanks.