Yes, that is the instruction on the Pentax website to download some tethering software.
Makes me wonder if I should still be contemplating the K5.For using the Remote Assistant with K10D camera, you are required to be installed K10D firmware version 1.20 or later.
Crick here to update firmware version.
K20D can be used the Remote Assistant without update.
The Remote Assistant can be used only for K10D and K20D.
For Windows Vista right click the icon of PENTAX REMOTE Assistant 3 or PENTAX PHOTO Browser 3 and click [ Execute as Administrator(A)