Flat Packages, Gatekeeper, and Resources

Hello. 
This is a cross post because I could not delete my old message in "Mac OS X Technologies" subforum.  Apologies for that.
I am maintaining an old 10.4 style package which is a bundle (or distribution package?) produced from package maker 3.0.4.  Since we now need to sign our packages and since this requires, it seems, flat packages, I took my existing package and set the minimum target OS to be 10.5, which converted it to a flat package.  Thereafter I could sign our package using productsign.  However, the readme, welcome and other files stopped being displayed during the installation process.  These file display options seem closed to me:
http://developer.apple.com/legacy/mac/library/#documentation/DeveloperTools/Conc eptual/SoftwareDistribution4/Managed_Installs/Managed_Installs.html#//apple_ref / doc/uid/TP40004615-CH6-DontLinkElementID_29
So my questions:
a) Is there are way that I could re-incorporate them (readme, welcome, etc) into the user experience and sign my package so that Gatekeeper will not complain?
b) Is it true that only flat packages can be signed? 
c) When I select 10.5 as the minimum OS, the postflight option disappears from the UI, but it still seems to execute.  Why? Should I switch to postinstall instead?
d) Are postupgrade and preupgrade valid for flat packages?  Or is there no difference between postinstall/upgrade and preinstall/upgrade?
e) Are flat packages and distribution packages fundamentally different?
Thank you for any help, I do appreciate it.

Note that the specification says relative [path]:
"Class-Path :
The value of this attribute specifies the relative URLs of the extensions or libraries that this application or extension needs. URLs are separated by one or more spaces. The application or extension class loader uses the value of this attribute to construct its internal search path."
Your value is incorrect, it is saying that resources is a sub-directory of the jar.

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    http://www.apple.com/itunes/download/
    If you use Firefox instead of IE for the download (or vice versa), do you get a working installer?

  • The installation package could not be opened. Verify that the package exists and that you can access

    Do you get the "The installation package could not be opened. Verify that the package exists and that you can access it, or contact the vendor to verify that this a valid windows installer package" error?
    download and install "right click take ownership"
    http://www.howtogeek.com/howto/windows-vista/add-take-ownership-to-explorer-right-click-me nu-in-vista/
    locate the adobe folder inside the programdata folder, mine was located at "C:\programdata\Adobe"
    right click the adobe folder,  and take ownership of the folder.
    Don't know if this will fix other peoples problems, but it fixed mine.

    Hi
    Try the following:
    Uninstall iTunes and Quicktime
    Reboot
    in the task tray right click the quicktime icon and click exit.
    navigate to the folder in program files and remove the quicktime directory and all its files.
    Reboot.
    Now try install iTunes and quicktime and it should work
    Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

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