OK, OK, I downloaded it, it works!!!
I had tried the 2005 version which worked with a DS I had borrowed back in October and I was disappointed when it did not work with my DL. I have not used the PEF format enough yet, getting a feel for the camera in jpeg mode first. I have had the opportunity to use Adobe Camera RAW (which is very nice), and I have tried the Pentax Photo Lab (which did not seem to give me the results I wanted), so now I will try RSE and see how it works for me.
Thanks for the head's up robar.