Problem moving hidden files from Iphoto to Aperture
About a year ago I installed Aperture and moved all my iphoto files to Aperture. I have just now discovered that the files I had hidden are missing. I just updated to Maverics & updated my Aperture program, but don't know if I update iphoto if I will be able to access the files I had hidden. I don't see a way to unhide files in Aperture. I can search for a file on my mac and it will bring it up that it exists in iphoto, so I know they are still in my library on iphoto. I have an external hard drive that I keep my photos on. I'm not very computer savvy, so I need an easy solution if possible. Thanks for your help!
MacBook, Mac OS X (10.5.6)