Lost referenced photos in Aperture -- need help with re-associating them

Question

When I first started using Aperture 3, I elected to have my existing iPhoto pics as referenced, rather than managed files.
I recently replaced my hard drive (for a bigger one to hold all those photos...). Now I find that whenever I click on a referenced photo, I get the error message:
Versions with unavailable master files cannot be exported. The selected master image is either offline or not found. Please reconnect it and try again.
I understand I can go do File>Locate Referenced Files.
Given that they haven't been moved from their original location (I assume within the iPhoto library), is there a way to automatically re-associate all of them? I've got about 10,000 photos like this now and can't possibly track them down one by one.
In the dialog window that pops up, the lower box is where you point to the original files. I can select "iphoto library" but don't see any way to do this easily for a lot of photos. Am I missing something?
Thanks.

Answer 1

Oh, man -- THANK YOU!  That last bit of info did it for me.
So to summarize for others that may be struggling with this:
[1] Create a smart album to locate all the  referenced photos (I used the keyword "iphoto original" which Aperture applied to all my iphoto pics when I starting using Aperture).
[2]Select all photos in the album (cmd-A)
[3] File>Locate Referenced Files
[4] In the upper panel highlight one photo. 
[5] Use spotlight to locate where that photo is on your hard drive.
[6] In the lower panel navigate to the location of the photo
[7] Click on the "reconnect all button at the bottom.
Aperture then took about 5 minutes reconnecting all my referenced photos.
Excellent. Thanks!