acts_as_audited on ActiveResource

I came across this awesome plugin used for auditing models. This is an
ActiveRecord extension. However I was wondering if I could tweak it a
little to make it work for ActiveResource.

In case you haven't heard about acts_as_audited plugin, here is the
link to check it out.

http://opensoul.org/2006/07/21/acts_as_audited

Is there anyone who has experience in similar context? Please help!