Having the same problem here, was able to install the update and the nude figure set with Paul 2 & Pauline 2 but every other installer keeps telling me I have no Poser 11 even though I do. Nor do they pay attention when I try pointing them at my Poser 11 folder. Obviously something is borked but what?

ADDING: Okay, if I don't need to install anything else but these two .exe files then all is good?