Enter the following at the Cheat Code screen under 'Options':

14COURSES    All Courses  
ALLTW3       All Golfers
SUNDAY       Super Tiger Woods
MCRUFF       Hamish
SUPERSTAR    Josey 'Superstar' Scott
IAM#1        Cedric " Ace" Andrews
ORANGES      Stuart Appleby
XON          Brad Faxon
JUSTINTIME   Justin Leonard
CALCULATE    Mark Calavecchia
TB           Mark Omeara
THESWING     Jim Furyk
GODFATHER    Dominic " The Don" Donatello
VJSING       VJ Sing
BANDPANTS    Charles Howell III
COWGIRL      Kellie Newman
SOLITARY1    Solita Lopez
SINK         Stewart Cink
SS           Steve Stricker
TYNO         Ty Tryon
2TON         Takeharu "Tsunami" Moto
NOTABLY      Notah BeGay III
VALENTINE    Val " Sunshine" Summers
YOYOYO       Melvin "Yoshi" Tanigawa

Thanks to Revolution readers tim1600hp, Frodo, jonny, pieter the best and Troy Bretz!