i am new to macs. i have a facebook account that i use to communicate with family and friends. i noticed that when i uploaded pics today, they were separated by date (this is typical) but then by original and modified. i had never noticed this before. it is a pain to upload all the images from one event from 2 different areas. how can i merge these (original and modified) back together?
Not sure what you did, but here's how I load from iPhoto to FB.
Select a photo from any event and hit command-. (that's holding down the command and hit the period key). This marks the photo as flagged, and if you look on the left, there is a special folder for flagged photos. You can go all around your iPhoto library and hit command-. as many times as you like to flag as many photos as you like. If you change your mind, hit command-. again, to turn off the flag.
After I've flagged all the photos I want to put in the FB folder, I click on the flagged folder to see the photos in that folder, hit command-a (that selects all the photos in that folder) then publish to facebook (by pressing the FB button in the lower right).
Once it's published up, I can see the FB folder in the folder list on the left, so I then go back into the flagged photo folder, hit command-a to select all photos and then command-. (command and the period) to toggle the flag off, which clears out flagger photo folder, so I can set up another folder.
You can use the flagged folder for anything -- printing, facebook photos, mobileme folders, creating new folders just for organizing, etc.
Sorry if this didn't answer your question, but I hope something was of help.