Install PN with the installer, then go into the archive and in the optional folder is the DarnUI files. Extract those to the PN folder. It is possible to install everything with FOMM through MO all at once and the. Then create one mod from the overwrite folder. Or you can do each mod separately.
Heh. I did it a little differently -> I simply copied all files from the DarnUI into the PN main folder and replaced when prompted :) So far, everything works though. For the first time. Thanks a lot :D