Gnuplot problem



Hello,
I am new to maxima, i am running a macintosh g4, on tiger os x 10.4.  
I am trying to get maxima up and running. I have gotten as far as  
getting all the packages required by fink, i have ran it on an x  
window and in emacs using imaxima.  I like the imaxima version, but   
i like the imaxima version better. The problem I keep running into is  
when i try to run a command like : plot2d(3*x+8); or something like  
that , i get the error "gnuplot: command not found" I don't know why  
this keeps happening, i have gnuplot installed, and it runs in x  
window's, is there something else i need to do to configure maxima to  
see gnuplot, or could it be something else. If there are any  
suggestions, it would be much appreciated.


Thanks,
Jason