diff -Naur buddypress.orig/bp-themes/bp-default/_inc/ajax.php buddypress/bp-themes/bp-default/_inc/ajax.php
--- buddypress.orig/bp-themes/bp-default/_inc/ajax.php	2010-06-28 17:08:32.000000000 -0700
+++ buddypress/bp-themes/bp-default/_inc/ajax.php	2010-06-28 17:23:05.000000000 -0700
@@ -289,12 +289,34 @@
 function bp_dtheme_ajax_invite_user() {
 	global $bp;
 
-	check_ajax_referer( 'groups_invite_uninvite_user' );
+#dkhack_block - to make the bp-events invite work, get the event_id:
+if ( $_COOKIE['bp_new_event_id'] && ereg("/events/create/step/event-invites", $_SERVER['HTTP_REFERER']) )
+  $event_id = (int) $_COOKIE['bp_new_event_id'];
+else if ( ereg("/events/", $_SERVER['HTTP_REFERER']) )
+{
+  $event_slug = ereg_replace(".*/events/", "", $_SERVER['HTTP_REFERER']);
+  $event_slug = ereg_replace("/.*$", "", $event_slug);
+
+  # The idea here is that I can lookup the event_id based on the slug
+  # .   If I have an event_id, then I can override the group invite
+  # and make this work.  Very hacki hacki
+  $conn = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
+  mysql_select_db(DB_NAME, $conn);
+  $sql = "SELECT id FROM wp_bp_events WHERE slug='".mysql_escape_string($event_slug)."' LIMIT 1";
+  $result = mysql_query($sql, $conn);
+  $row = mysql_fetch_assoc($result);
+  $event_id = $row['id'];
+}
+# END dkhack_block
+
+	#dkhack - added !$event_id &&
+        !$event_id && check_ajax_referer( 'groups_invite_uninvite_user' );
 
-	if ( !$_POST['friend_id'] || !$_POST['friend_action'] || !$_POST['group_id'] )
+	if ( !$event_id && (!$_POST['friend_id'] || !$_POST['friend_action'] || !$_POST['group_id']) )
 		return false;
 
-	if ( !groups_is_user_admin( $bp->loggedin_user->id, $_POST['group_id'] ) )
+#dkhack - added !$event_id &&
+	if ( !$event_id && !groups_is_user_admin( $bp->loggedin_user->id, $_POST['group_id'] ) )
 		return false;
 
 	if ( !friends_check_friendship( $bp->loggedin_user->id, $_POST['friend_id'] ) )
@@ -302,8 +324,15 @@
 
 	if ( 'invite' == $_POST['friend_action'] ) {
 
-		if ( !groups_invite_user( array( 'user_id' => $_POST['friend_id'], 'group_id' => $_POST['group_id'] ) ) )
-			return false;
+#dkhack - do not do the invite:
+# instead of:
+		#if ( !groups_invite_user( array( 'user_id' => $_POST['friend_id'], 'group_id' => $_POST['group_id'] ) ) )
+		#	return false;
+		if ( $event_id && !events_invite_user( array( 'user_id' => $_POST['friend_id'], 'event_id' => $event_id ) ) )
+                        return false;
+                else if ( !$event_id && !groups_invite_user( array( 'user_id' => $_POST['friend_id'], 'group_id' => $_POST['group_id'] ) ) )
+                        return false;
+
 
 		$user = new BP_Core_User( $_POST['friend_id'] );
 
@@ -317,9 +346,16 @@
 		echo '</li>';
 
 	} else if ( 'uninvite' == $_POST['friend_action'] ) {
+#dkhack - instead of:
+		#if ( !groups_uninvite_user( $_POST['friend_id'], $_POST['group_id'] ) )
+	#		return false;
+# do this:
+                if ( $event_id && !events_uninvite_user( $_POST['friend_id'], $event_id ) )
+                        return false;
+                else if ( !$event_id && !groups_uninvite_user( $_POST['friend_id'], $_POST['group_id'] ) )
+                        return false;
+
 
-		if ( !groups_uninvite_user( $_POST['friend_id'], $_POST['group_id'] ) )
-			return false;
 
 		return true;
 
@@ -559,4 +595,4 @@
 }
 add_action( 'wp_ajax_messages_autocomplete_results', 'bp_dtheme_ajax_messages_autocomplete_results' );
 
-?>
\ No newline at end of file
+?>