[tex-k] Question about TeXlive install on Windows

[Andrew Komornicki]

Colleagues, 

This is a question about the TeXlive installation. 

Back in Sept 2008 I installed TeXlive 2008 on my new Windows XP laptop. All 
went well, I did some minor changes to the installation and have used this 
ever since. 

 I recently thought to check on possible updates to my system, so I invoked 
the install script from the program menu.  This script stopped with the
message that I could not reach one of the mirror sites.  After repeated
attempts, I decided to download the (new) 2009 install zip file.  This one 
appears to work, but it also wants to provide a brand new TeXlive installation. 
 
 Can anyone educate me as to how this system works??  I am very happy with 
the installation that I have, and do not want to start all over.  All that 
I was looking for was a simple update/upgrade to my system. 
 
 Is my understanding correct that the install-tl.bat script from 2008 no
longer works?  
 
thank you for your help. 
regards,
andrew