Hi,
There is a way of reconnecting images (providing they still exist on your hard drives) but I would like to try and find out why you are breaking the links to stop it happening in the future.
Where are your images stored (you can check from the information panel)? If it is on an external drive, has the drive changed its drive letter since you loaded the images?
When you do an import from card or camera, the organizer should copy the images to your hard drive. The location can be controlled by setting the preferences (see Edit -> Preferences -> Camera or Card reader).
Can you see the images on your hard drive if you use Windows Explorer?
Brian