I am not an AIX admin, but the guy that usually is has left and I am now the default person to do this stuff (scary for them). I am trying to install Java 5 on AIX 5.3, and am getting
MISSING REQUISITES: The following filesets are required by one or more
of the selected filesets listed above. They are not currently installed
and could not be found on the installation media.
I keep downloading Fileset Update from AIX website.
One fileset require (depend on) another fileset.
Is there a better way to install jdk 1.6 on aix 5.3?
All the filesets you mention are pretty old: "....0.30" indicates that these are from "maintenance/technical level" 3 (see http://www.unix.com/aix/75964-aix-5-3-tl6-problem.html\#post302223002 for an explanation what the term maintenance [or technical] level means). Probably your machine needs some software update anyway?
If so, you find a detailed explanation about how to determine the maintenance level in the pinned Thread at the top of this forum ("AIX bits and pieces"). Please report back your exact OS level.