Mac OSX 10.6.4 - postinstall / postflight scripts work fine in single pkg, but not in metapacts

Question

I am new to Mac OSX dev and am having trouble creating a meta package.

I have 7 pkgs that I want to wrap in a metapack.

When I execute each package separately, everything works as expected, all scripts run, etc.

However, when the same packages are run as part of a metapackage, none of the scripts are executed. Scripts are postinstall or postflight.

I tried using Iceberg instead of PackageMaker, but I get the same result.

Is there something I am missing?

I'm tearing my hair out!

Thanks in advance,

Mark.