Thanks "pivot-man" (a little engineering humor there... HA!) and thanks to all who wrote. Melanie Boston responded back to me from lavasoft within 6 hours of writing them.... FYI: some bits follow
"The only known conflict with Ad-aware and another software program is with
the Nortel VPN connector when installed on XP, the solution is to disable
the connector when scanning with Ad-aware, reconnect it when finished.
Ad-aware is compatible with all other software programs.
The reason that firewalls dont alert to a lot of the spyware is because the
information is sent via the browser or a program that has been granted
access to the net. A lot of the spyware/adware programs install a BHO
(browser helper object) that attaches directly to the browser. Of course the
browser will be permitted access to the net and past the firewall, so, once
attached to the browser, the spyware/adware is ready to transmit its
information.
Unless you are comfortable working in and editing the registry, I wouldnt
reccommend messing around in there. RegHance is the easiest way I know of to
create backups of the registry and to look for particular keys though. And
to replace the registry after installing a software I may decide I dont
like/want.
Lavasoft offers a free software named RefUpdate that downloads and installs
the reference files. You can find RefUpdate here;
http://www.lavasoft.nu/downloads.html Of course after installing RefUpdate
into the Lavasoft Ad-aware folder, you will want to run RefUpdate to update
to the Current Ad-aware signature file (ref # 038-16.08.02). Please note
that RefUpdate will not function with a proxy server, if you use a proxy,
you will need to download the reference files and install them manually.
Ad-aware Plus and RegHance information;
http://www.lavasoft.nu/purchase.html