You need to put a copy of !DAZ with contents in both P4 and P5 Runtimelibraries if you intend to use both programs to inject morphs. Poser 5 "looks" in the main Runtime for the morphs no matter which Runtime you happen to be in - and then - given the system to system variability of how long it takes, it probably looks on the whole HD following whatever ranking it uses for any other sort of find function. I am betting that the logic to use your present Runtime is missing - readScipt was coded way before Poser was even considering using more than one Runtime. ReadScript is a very handy function, but given its present coding in Poser it is mostly a kludge.