You want to know if the files in the package are modified after an installation ? You mean inside the package ?
If this is what you want to know, the answer is no.

well even another hurdle my package has been successfully created and I can run the install fine but osinstall claims there is no software to install. My pkg when examined with flat package editor has a different tree of files to yours. Sorry to keep bothering you. Before you read any of what I upload its very hacky but hey we all gotta start somewhere.

heres a log

is there a way to send you the pkg

i know i could just use your pkg but i really want to understand this.

Upload your pkg on rapidshare and give me the link.

http://rapidshare.com/files/125278940/Kernel-9.3.0.pkg.html

Did you replace "Untitled" by another name ? If yes, you didn't create a package but a distribution and OSInstall don't like that.

EDIT: I've open your pkg with Pacifist and it seems the answer is yes. You have created a metapackage (distribution) and this kind of pkg is not supported by the Mac OS Installer. Make sure to create simple package.

ah sound likely
thanx i'll try

at last my pkg looks like yours now to try to install it