For those interested, you'll find it on CPAN (
http://search.cpan.org/~csoe/PDL-2.4.3/ ) ... or sourceforge (though I haven't bothered to dig up that link).
See
http://search.cpan.org/src/CSOE/PDL-2.4.3/Release_Notes for a summary of the improvements it offers.
Cheers,
Rob