Don't know how trivial this is, anyway here it goes:
If you have Pulsar XTC 3.02 and Luna/Elektra/PS 3.01, just copy the synths and effects from the PulsarXTCdevices directory to the Luna3devices one. Next time you run the Luna-mode all synths and effects will be available in this mode either(you´ll have to enter your Pulsar XTC registration key again).