You can use the repair tool to fix the junction links, as for the files
First grab the zip file off this page and apply the reg file it in to add the take owner ship to the right click menu in explorer.
http://www.tweaking.com/articles/pages/add_quottake_ownershipquot_to_right_click_menu_in_vista_amp_7,1.htmlOnce that is done go to C:\Windows\servicing\ and right click on Packages and click on take ownership. You will now be able to copy the files into that folder.
I have attached the missing files, extract the files out of the attached zip file and put them in the C:\Windows\servicing\Packages\ folder.
Then run my pre-scan again, put a check on the box to have it add the cat files back to the database.
Shane