First my system is a 17" G4 laptop, MOTU Traveler, Lacie 250 gig harddrive, Grace 101 mic pre, TL50 compressor. Blue Baby Bottle mic, etc....
I recently recorded vocals in Logic 7 onto the Lacie but every time I save the project and come back, when loading the song it says--12 Invalid Regions---
or ---whatever # and some of the parts are misplaced or arranged differently in the song......What am I doing wrong and how can I correct this problem....Some one please help.....

when you save the file before transfering to the Lacie do you ' save as archive ' ?
This might make a difference

I never tried that >>>I will try today though.....thanks...I will respond back....

Also take a look in the audio window, and see if it show a path to the original file.

When you open the song does it say cannot locate file? if so locate it manually, or let Logic search for it.

Double check the file path for the song also. If and when you locate the files, do save as project and select copy or move the files.