Downloaded photos not showing up in the usual places.

Question

I just downloaded 300 pictures from a CD.  The pictures only show up in the "last import", they don't show up in "photos", or "events".  In addition, when I go to Costco site to upload photos, none of my 2012 photos are showing up.  I click on iphoto, then originals, then 2012.  Some numbered photos appear, with no names and no pictues in them when I click on them.  I upgraded to iphoto 11 probably in January, but haven't had a problem until now.
Thanks for any help

Answer 1

If they are in Last Import then they are in the Library - somewhere.
Usual reason is that they are not where you expect them to be either because the date on the imges is not what you expect, or the Sorting is not what you expect (View Menu -> Sort Events / Photos)
Right click on one of the images in Last Import and choose 'Show Event' to bring you to the relevant event.
I'm not sure what ypu're referring to when you talk about uploading to Costco (or anywhere). There is no access to an 'Original' folder in iPhoto 11 - in fact, there is no such folder at all.
There are many, many ways to access your files in iPhoto:   You can use any Open / Attach / Browse dialogue. On the left there's a Media heading, your pics can be accessed there. Command-Click for selecting multiple pics.
(Note the above illustration is not a Finder Window. It's the dialogue you get when you go File -> Open)
You can access the Library from the New Message Window in Mail:
There's a similar option in Outlook and many, many other apps.  If you use Apple's Mail, Entourage, AOL or Eudora you can email from within iPhoto.
If you use a Cocoa-based Browser such as Safari, you can drag the pics from the iPhoto Window to the Attach window in the browser.
If you want to access the files with iPhoto not running:
For users of 10.6 and later:  You can download a free Services component from MacOSXAutomation  which will give you access to the iPhoto Library from your Services Menu.
Using the Services Preference Pane you can even create a keyboard shortcut for it.
For Users of 10.4 and 10.5 Create a Media Browser using Automator (takes about 10 seconds) or use this free utility Karelia iMedia Browser
Other options include:
Drag and Drop: Drag a photo from the iPhoto Window to the desktop, there iPhoto will make a full-sized copy of the pic.
File -> Export: Select the files in the iPhoto Window and go File -> Export. The dialogue will give you various options, including altering the format, naming the files and changing the size. Again, producing a copy.
Show File:  a. On iPhoto 09 and earlier:  Right- (or Control-) Click on a pic and in the resulting dialogue choose 'Show File'. A Finder window will pop open with the file already selected.    3.b.
b: On iPhoto 11 and later: Select one of the affected photos in the iPhoto Window and go File -> Reveal in Finder -> Original. A Finder window will pop open with the file already selected.