this is what I'm trying to access and what I tried:

 [user1]-[2011-04-14 21:59:26]-[11] 
 $  ln -s /usr/local/smlnj-110.72/bin /usr/local/bin/smlnj
 [user1]-[2011-04-14 22:01:26]-[12] 
 $  ls /usr/local/smlnj-110.72/bin/ | grep sml
sml