R help - Nov 2012 - internal cluster quality indexes

Dear useRs,
 
I wanted to know something about the Index.G2 and Index.G3 which Calculate G2
and G2 internal cluster quality indexes.
i tried to find material from internet but it seems that the file have been
removed. Is it good to have higher values of these indexes or lower?
 
thanks in advance
eliza  		 	   		  
	[[alternative HTML version deleted]]