ACS is designed to monitor security events and report on IT so you should collect and report on these events there to have the best experience.
The predefined report will help you do increase value to our reporting in relation to other events.
http://opsmgr2007.wikidot.com/system:audit-collection-servicesJust creating a view without having event rules to collect them is not possible. If if you don't want alert you can create a rule to just log them en report on them. Same way as described but than under the rules section.
Still, wath you want is a correct configured ACS to fit your needs.
Regards,
Walter