Without use the change picture option, I think you'll get the result you're after by selecting the picture you want to change, then simply choosing Insert|Picture.

Of course, if these pictures were all inserted as links, you wouldn't even need to do that. Simply give the new ones the same names as the old ones, then replace all the images in the source folder with the new ones. Done. At most you might need to do a Print preview of the document.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]