Yes, you can read the manual and install the AVIC Feeds software to create POI's or download KML files from your favorite POI website.
Place the KML files on a SD card in the directory \NDB\CUSTOMPOI
Once you've done this you should then see the custom POI's under Avic Feeds.
In general, if you are posting a question you should start a new thread, if anyone has any help for my origional question please let me know.