Where do I get pgAgent now? - Mailing list pgsql-admin

I've seen lots of questions about this on the Internet, but no answers.

I've got PostgreSQL 8.4 and 9.1 both installed on my computer.  I am trying to set up a scheduled database job to
supportapplication testing.  The problem is that I do not seem to have any of the files required to install pgAgent.  I
don't'have the pgAgent.sql file or the pgAgent.exe.  Does pgAgent no longer exist after 8.3?  If it does exist for 8.4,
wheredo I get it? 

I have an installation of pgAgent from 8.3, but when I try to use it with an 8.4 database, it is crashing when I try to
createa new job, although I can edit an existing job. 

Thank you for your help.

RobR