[R] How to create a 'fit' plot

[R_xprt_wannabe]

Dear List,

As someone who is in the process of trying to migrate
from Excel, I'd appreciate any help on this question:

I have a data set and want to fit, say, three
distributions to it.  I would like to create a plot
that shows my data points against all three fitted
curves (estimated d.f.).  Basically, I lookint to
creat a plot that looks like the one presented in the
attached paper (Figure 5, page 12):

http://www.math.ethz.ch/~mcneil/ftp/astin.pdf


Could you please show me, or point me to example code
showing, how that can be done?  

Thanks,