I tried also to upload from a 224 CPU but it was password protected.
I found the following program which i did not test because this CPU224 was set PPI at 187,5kbps baud rate and the crack program has only option 9,6 or 19,2kbps.
I hope it will help you
https://www.rapidshare.com/files/919010640/S7_200.rar
If anyone could advice for uploading a password protected CPU224 at 187,5kbps I would really appreciate.
Thanks in advance.