Ok, the patch file has reappeared. For those who are interested, files included in it (and presumabily modified by this patch) are:
All the executables (apps): The Sims 2, Body Shop and Package Installer.
In Expansion Packs/Pets/TSData/:
3D/CarryForward.sgfiles.package
3D/Objects00.package
3D/Objects03.package
3D/Objects05.package
3D/Sims00.package
3D/Sims03.package
3D/Sims06.package
3D/Sims07.package
3D/Sims11.package
Catalog/Bins/globalcatbin.bundle.package
Catalog/Skins/Skins.package
ContentRegistry
Materials/Materials.package
Objects/objects.package
ObjectScripts/ObjectScripts.package
Text/MusicTitles.package
Text/Neighborhood.package
Text/Options.package
UI/ui.package
UserData/Thumbnails/DesignModeThumbnails.package
Wants/WantTrees.package
Finally, attached is the diff output produced by hackdiff, on objects.package.
Now, I'll proceed patching my game. Pray for my soul, thanks.