Upgraded from Cubase 5.5 to 7.5 - find missing files

Hi all - I searched the forum and although this is a seemingly simple issue to fix I want to get input from those that have already faced this dilemma.

I pulled up a project in Cubase 7.5 that was originally a Cubase 5.5 .cpr and only two media bay files were missing (I attached a screenshot of the missing file names). All other tracks work flawlessly (thankfully). I can’t rescan the the C5.5 VST Sound Collection or Cubase 5 installation Cd for these files and will have to (i assume) run the old! .exe files that will overwrite my existing 7.5.2 files. Correct?

Maybe I’m making this harder than it needs to be. Can anyone tell me how to integrate the old 5.5 sounds in with 7.5 or is this possible?
Missing Cubase VST wavs.JPG