PhotoFiltre

Hi,
Photofiltre has a nice negative function that will allow me to reverse the colours in my images. I have a large number of snapshots that I would like to convert to negatives. Is there a means of doing this using Photofiltre, or do I have to do one at a time?
Thanks,
...... john

Anyone??
.... john
P.S. My apologies. I was using the wrong version of Photofiltre (6.5.3). It works very well with version 7.2.1

Thanks for the update!
Concerts are awesome, especially Dixie Chicks concerts which are always state-of-art.