Updating packages while being able to use the old distribution CDs

[syuval]

When I run "apt-get update", Debian logs on to the updates ftp site (such as 
ftp.debian.org) and downloads an entirely new list of packages which 
overrides the older list. Thus if I install Debian from CDs and update, I 
will no longer be able to use them. Debian will insist on installing any 
previously not installed programs from the site, rather than the discs. Can 
I somehow tell apt-get only to update my X Windows System to version 4.2 
(and to download any required dependency library updates) without making me 
dependent on the website forever?

--
To UNSUBSCRIBE, email to [EMAIL PROTECTED] 
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]