Newbie question: review diffs between two svn tags

Howdy,



I'd like to set up a review of changes made between one Subversion tag
and another. The files have had multiple commits and, hence, multiple
revisions exist between the tags. The closest I can find to what I want
to do is Reviewing a Subset of a Subversion Revision
but that seems to review file differences across only one commit/pair
of revisions. Is what I want to do possible? Are we using Subversion
"wrong"?



(And, actually, what I really want to do is one more degree complicated:
I have two libraries and one executable and I want to review changes
between two tags in one library repo, changes between two tags in
another library repo, and changes between two tags in the executable
repo, all in one review since the changes are all related...)



Thanks,



Nathan