Alright, reading the file in
postgresql-8.2.5/src/timezone/README
I take it that anyone with a source compiled pg or using source rpms
should be able to download the tzdata from here:
ftp://elsie.nci.nih.gov/pub/tzcode2007k.tar.gz
and put it here:
postgresql-8.2.5/src/timezone/data
and recompile and have the new timezone they need?