Mia
Norton is a POS when running on ME - I really do advise you to consider
changing your AV.

As far as your 3 'viruses' are concerned, there is a big difference between
viruses and Trojans - and Norton did not deal at all with Trojans or spyware
until recently - and they're still bl77dy awful at it.

One of the things that spyware frequently does is install a Trojan so force
the user back into the 'target' area - where either data can be harvested,
or certain actions forced. This is why Ad-Aware has been dealing routinely
with Trojans for some time - an why they are so much better at it than
Norton!

(Ad-Aware does NOT deal in viruses - except under certain circumstances - so
you still require a good AV kept up-to-date)

The Norton Rescue Disk that you create from the NAV option is in fact a DOS
version of Norton, running from floppy - the problem here is that unless you
make frequent copies of the disk, it's unlikely that you'll be able to
create an uninfected floppy set from the machine you want to clean - so
would have to find another clean machine with Norton, etc - OTOH, you can
download a DOS virus scanner from www.f-prot.com free, on any known-clean
machine, and create the disks there, for use on your machine.

HTH