R help - Oct 2010 - instal tar.gz package on windows, help

*Dear All, *
**
*I want to install a tar.gz package in R on a windows operating system.
Since R in Windows accepts only packages in zip file for installation,
I tried to decompress the tar.gz file and create a zip file using 7 zip for
a subsequent installation, yet this didn't work.  Can anyone help me?  I
greatly appreciate your suggestions.*
**
*Wayne*

	[[alternative HTML version deleted]]