Howto Modify Live CD

I would like to know how to modify the current Live CD to password the
root account and limit it to one logon.  I need to set it up to boot
into a wireless network.  This is on some new laptops where I am not
permitted to make changes to the HDD installation (which is a plain XP
install with no apps).  The center director wants me to build a CD
where they can access the Internet and have the same type of
environment they do via the LTSP OpenSuse EDU installation in the
building on the dumb terminals.

Thoughts? Comments?

Thanks in advance!

Doug Glenn
FORUM Information Systems, LLC
http://foruminfosystems.com