As I alluded to recently, if one wanted to re-analyze a model from the published literature (or propose an entirely new specification of a model), one could directly type a correlation matrix (ideally with standard deviations) from an article into AMOS. In this way, SEM analyses can be done on a data set without having the actual raw data. We'll discuss this in class today. The necessary information can be found in the AMOS program, by going to the "Help" area and looking up: "To reformat a text file of sample moments."
[UPDATE (April 26, 2011): Make sure in your plain-text file with the necessary information to leave no blank lines beneath the last line of syntax. Thanks to "Hermione" for catching that!]