Gilbert,
I apologize, there was a stupid error in the sql/postgresql/bug-tracker-drop.sql script that caused it to fail. If you update that file from CVS and try to delete the package again with the package manager, you should succeed.
I've made an APM available from http://www.pinds.com/download/bug-tracker-0.7d2.apm.
I've just installed bug-tracker, created a couple of bugs, deleted it again, and it worked for me here.
/Lars
