[Rocks]

1.) What you could try to do is replace the original files on the cd with the cracked ver of those files, then install.

2.) But if the install files are compressed in some way it might be harder. In that case you would have to go inside the compressed install file and replace the files that way, and that will only work if it isn't some weird compression format. This is assuming that the installer it's self doesn't have some kind of check.

3.) You could try some kind of installation script (.bat file?) that runs the original installer and then replaces the files on the HD with the crack files.

4.) What I do is I put all game updates, map packs, cracks, etc. on the cd and just run it manually after install to insure I have everything I need.

Hope this helps.