Another question is - Does Consolidate Masters as Project' take up a lot of space? Once I have done this, does it mean I could delete the images stored in Photos?
When you consolidate masters, you will be prompted if you want to move or to copy your master image files. If you select to move, you will not need any additional space, if the images are relocated from a folder on the same drive as the library. Then you will not need to delete any files afterwards. If you select to copy, you can remove the original files after consolidating, but compare the size of your Aperure library before and after consolidating, to be sure that your images are now inside the library.
However, I got a project that has really lost the original image even though I used spotlight to search my entire computer. How do I get back these files since I still could double-click to view the image (large). I have these 'lost' images posted on facebook. How can I retrieve them?
Since you can view the image, you seem to have high quality previews. The Previews are what you see, when you access the Aperture Library from the Media Browser in any iLife or iWorks Application.
You can copy them from the Previews folder by opening the Aperture Library Package.
- Quit Aperture, if it is running.
- Select the Library in the Finder by opening the "Pictures" folder; then ctrl-click the Aperture Library. Select show Package Contents from the pop-up menu.
- Open the Previews folder inside the package and try to find the Previews of your missing images. Copy them to a folder on your Desktop. If you cannot find the original master image files on your Backup, these Previews will be all that is left of your images.
Right now, I reopened my value and it says 'Aperature Library_Old'. How can I use this library as the current one?
A vault is not a library, it is a backup of your library, from which you can restore your library. Is this vault old enough to contain your missing images? A vault only stores managed images. If you created your vault while the images in question where managed, you might be able to recover them from this vault.
See this section of the Aperture User Manual on how to restore a library from a vault: Restoring Your Aperture System
Regards
Léonie