This link will show you how to create a replacement Pollination Tech. see post #22
http://www.modthesims.info/download.php?t=70256This link will show you how to change other NPCs for your own personal use (they can't be downloaded) for this link, you will have to become a member of the site before you can view pages there, however:
http://www.simsafe2.com/forums/index.php?showtopic=3484