--- rdiff.orig	2003-08-09 01:16:02.000000000 -0600
+++ rdiff	2004-07-26 17:26:03.000000000 -0600
@@ -128,6 +128,7 @@
     my $tmpl = "", $text = "", $diff = "";
     my $rev1 = $query->param( "rev1" );
     my $rev2 = $query->param( "rev2" );
+    my $attachment = $query->param( "filename" );
     my $maxrev= 1;
     my $i = $maxrev,    $j = $maxrev;
     my $revTitle1 = "", $revTitle2 = "";
@@ -147,9 +148,9 @@
 
     my( $before, $difftmpl, $after) = split( /%REPEAT%/, $tmpl);
 
-    my $topicExists = &TWiki::Store::topicExists( $webName, $topic );
+    my $topicExists = &TWiki::Store::topicExists( $webName, $topic, $attachment );
     if( $topicExists ) {
-        $maxrev = &TWiki::Store::getRevisionNumber( $webName, $topic );
+        $maxrev = &TWiki::Store::getRevisionNumber($webName, $topic );
         $maxrev =~ s/r?1\.//go;  # cut 'r' and major
         if( ! $rev1 ) { $rev1 = 0; }
         if( ! $rev2 ) { $rev2 = 0; }
@@ -201,7 +202,7 @@
             $diff =~ s/%REVTITLE1%/r1\.$r1/go;
             $rInfo = getRevInfo( $webName, $r1, $topic, 1 );
             $diff =~ s/%REVINFO1%/$rInfo/go;
-            $text = &TWiki::Store::getRevisionDiff( $webName, $topic, "1.$r2", "1.$r1" );
+            $text = &TWiki::Store::getRevisionDiff( $webName, $topic, $attachment, "1.$r2", "1.$r1" );
             $text = renderRevisionDiff( $text, $topic );
             $diff =~ s/%TEXT%/$text/go;
             $diff =~ s|( ?) *</*nop/*>\n?|$1|gois;   # remove <nop> tags (PTh 06 Nov 2000)
@@ -266,4 +267,5 @@
     $after =~ s|( ?) *</*nop/*>\n?|$1|gois;   # remove <nop> tags (PTh 06 Nov 2000)
 
     print $after;
+
 }