The Eureka Steganographer logic is included in this edition and is referenced as File/Message Insertion into File and Extract from File under the Utilities menu.  They share the same window although there are a few differences which will be explained shortly.

File/Message Insertion into File

At the top of the screen you define the PassPhrase information.  On the left are three fields that are the file information.  The top one is the File to Insert Into, this is the file that will receive and insert the data into itself.  The middle field is the File to Insert, the data that will be the source of the insertion.  This is only for when you are inserting a file.  If this field is blank than it means that a message is the source instead.  The bottom is the Destination File, the file that will be written with the insertion data in place.

To the right of the file info fields is the message area where you can type in your message to insert rather than a file.  If both the message field is blank and the File to Insert field is blank an error message will be generated, as one of them has to be populated.

The file defined in the File to Insert Into field can be a image file (although it will probably corrupt it somewhat), mp3 file (works great), any type of executable file, just so long as it is not a text file.

Extract from File

Since they share the same window, the Extract from File window is mostly the same.  On the left are three fields that are the file information.  The top one is the File to Extract From, this is the file that received the insertion.  The middle field is disabled as it does not apply to extraction.  The bottom is the Extracted File, the file that will be written with the data that was inserted.

To the right of the file info fields is the message area where the extraction can be seen bypassing writing it to a file by checking the Extract to Text check botton.  If you know for sure that the data in the file is a message, check the box so the file won't be written.  This is a great way to keep the messages private as they never exist in decrypted form, only in memory while you are looking at it.