Moving this discussion to the Photoshop Lightroom forum.
How did you go about the export from iPhoto?
Did you use the iphoto importer to import from iPhoto? Aperture import plugin now available
Here's another help doc that should help as well. Lightroom Help | Import photos from iPhoto (Mac OS)
Let us know how it goes.
But will it import photos as it is in iPhoto in their albums and folders,
Please excuse my iPhone for taking over my typing
I dragged the iPhoto library that Lightroom importer did not recognize and only 1/2 or less has been imported since last Wednesday.