How can I remove all photos and directories from iPhoto?

Question

How can I remove all photos and directories from iPhoto as if it was a brand new install?
I am new to iPhoto and was unaware of how it works, honestly I still am a little confused as to when pics I am using 1/2 the time, some from iPhoto and some from MyPics.
Anyhow, I am looking to remove all photos from iPhoto because during the migration of all my photos from PC to MAC, somehow my timeline became messed up and all my photos that have been logged my dates since 1998 are now all messed up.
Although all my year folders are still in tact, IE 1998-2006, the subfolders and like pics are all intertwined somehow.
And when I search iPhoto for a given year, photos from 2,4, 8 yrs back show up in 2006.
Anyhow, I have selected and deleted all photos and folders within iPhoto, and then import the desired photos from MyPics, only to have the photos double up in the library. ( The old ones that should be deleted and the new imports)
I simply don't get it, they fill the trash and disappear when it's emptied, then reappear when iPhoto re-opens!
Can someone help????
I have completely reworked all my photos so that they are all in the correct folders outside of iPhoto, and now I want to import those and only those pics with that file structure.
IE Structure = YEAR > MONTH > DAY ( or if needed) > DAY/EVENT

Answer 1

Do you want to remove the existing full sized image files also? If so then just drag the iPhoto Library folder from the Pictures folder to the Trash and empty it. But be warned you'll lose all of your image files.
You are dragging the files to the iPhoto Trash bin and then using the iPhoto->Empty Trash menu, right?
In copying your photos to myspace and then back the original capture date may not be retained and then either the created date or modified date will be used by iPhoto. If the files in the current library are the originals from your camera then those have the best chance of retaining the correct Captured Date. You can check that out by dragging the Originals folder from your iPhoto Library folder to the desktop and then trash what remains of the iPhoto Library folder. Then launch iPhoto and it will ask you to create an new library. Then import that Originals folder and it's subfolders by dragging it into iPhoto's open window. You'll keep the same rolls that was. The roll dates may change but you can check the captured date of the files by using the calendar in the Source pane.
You won't be able to keep your folder structure within iPhoto. Each outside folder will result in a roll with the same title as the folder. You'll be able to create folders in the Source pane to put albums inside. You can create a smart album to include all photos in a certain date range, line one month.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
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