how do I reconnect my original images? All are offline and my adjustments feature now doesn't work

You use the "locate referenced originals" command from the "File" menu,

see the section Working with Referenced Images, paragraph Reconnecting Missing or Offline Referenced Images, in the Aperture 3 User manual. That explains the procedure.

But for this to work, you need to know where your referenced Originals are stored and to connect the volume with the referenced images.

Since when are the originals missing, and what happened before? Did your hard drive fail, or did you move your library?

Regards

Léonie