I believe those models were withdrawn due to an alleged copyright violation, along with the ones on the DLS. Too bad -- I had used them in a session for Avery-Drexel and had to replace them with something else.
The files were not on the site so they won't be archived. The links all point to mediafire servers and it seems most of those files have been removed. The SD9 is there but not its dependencies.
Trainz Forge has some NP units in the Lowey passenger scheme on their old site and there are some freight versions on the DLS. They also have a TRS19 version of the f units on the DLS too but they wouldn't work in TANE because of the use of PBR.