help with Rtools and Rgraphviz

Hi all,
I want to install the package Rgraphviz on R2.9.0 (after installing Graphviz 2.22). I have not been successful in installing from the binary on a win XP pc. After looking up previous posts on the R and bioconductor lists, I installed the Rtools29. I have checked that the paths are correctly listed on the environmental variables window.
I would now like to know how I can install with Rtools. Some of the commands that are listed in the R documentation are :

1. Run in the DOS cmd window :

tar Rgraphviz_1.22.0.tar.gz 

2.Put the ?.tar.gz? files in ?R_HOME/src/library/Recommended? 

run makelink-recommended
3. Run in the DOS cmd window
R CMD INSTALL -l C:\Program\R\R-2.9.0\library\Recommended Rgraphviz_1.22.0.tar.gz
(is the -1 above one or the alphabet l?)

I am not sure which of the above commands I should use. I am not familiar with the Unix environment. I would appreciate all help in either directing me to the relevant documentation, or in knowing exactly the list of commands that will do the install.
Thanking you,
Ravi