No "Source" in iphoto: missing!

Source section does not appear in iPhoto '09 for me. In fact, I have NEVER seen Source in any of my previous versions either.

I have tried the tips on here already - moving cursor to the left then dragging to the right, dragging on the "dimple", deleting "com.apple.iPhoto.plist" from my users folder... nothing gets Source to show up!

I have never had my photo stream show up in iphoto.... grr!!

HELP?!?!