diff --git a/ccm-atoz/sql/ccm-atoz/upgrade/default/6.6.1-6.6.2/drop_app_table.sql b/ccm-atoz/sql/ccm-atoz/upgrade/default/6.6.1-6.6.2/drop_app_table.sql
index b1acf663c..db40a777e 100644
--- a/ccm-atoz/sql/ccm-atoz/upgrade/default/6.6.1-6.6.2/drop_app_table.sql
+++ b/ccm-atoz/sql/ccm-atoz/upgrade/default/6.6.1-6.6.2/drop_app_table.sql
@@ -18,5 +18,4 @@
 -- $Id: drop_app_table.sql pboy $
 
 -- Don't do it! Application table is required with this package.
-
 -- drop table atoz_app ;
diff --git a/ccm-atoz/sql/ccm-atoz/upgrade/oracle-se-6.5.0-6.6.0.sql b/ccm-atoz/sql/ccm-atoz/upgrade/oracle-se-6.5.0-6.6.0.sql
index 278a1f19b..9d74d17a8 100644
--- a/ccm-atoz/sql/ccm-atoz/upgrade/oracle-se-6.5.0-6.6.0.sql
+++ b/ccm-atoz/sql/ccm-atoz/upgrade/oracle-se-6.5.0-6.6.0.sql
@@ -1,3 +1,28 @@
+--
+-- Copyright (C) 2008 Red Hat Inc. All Rights Reserved.
+--
+-- This library is free software; you can redistribute it and/or
+-- modify it under the terms of the GNU Lesser General Public License
+-- as published by the Free Software Foundation; either version 2.1 of
+-- the License, or (at your option) any later version.
+--
+-- This library is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+-- Lesser General Public License for more details.
+--
+-- You should have received a copy of the GNU Lesser General Public
+-- License along with this library; if not, write to the Free Software
+-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+--
+--
+
+-- classohm: changed AtoZ to not hide a category when an alias has been 
+--           defined for it; 
+--           changed AtoZ to allow more than one alias to be defined for 
+--           a category (version 1.0.5 / r2914, never officially released)
+-- $Id: $
+ 
 @@ default/add-cat_aliases.sql
 
 insert into atoz_cat_aliases (object_id, provider_id, category_id, letter, title)
diff --git a/ccm-atoz/sql/ccm-atoz/upgrade/postgres-6.5.0-6.6.0.sql b/ccm-atoz/sql/ccm-atoz/upgrade/postgres-6.5.0-6.6.0.sql
index 860a38a89..a4f8d285c 100644
--- a/ccm-atoz/sql/ccm-atoz/upgrade/postgres-6.5.0-6.6.0.sql
+++ b/ccm-atoz/sql/ccm-atoz/upgrade/postgres-6.5.0-6.6.0.sql
@@ -1,3 +1,28 @@
+--
+-- Copyright (C) 2008 Red Hat Inc. All Rights Reserved.
+--
+-- This library is free software; you can redistribute it and/or
+-- modify it under the terms of the GNU Lesser General Public License
+-- as published by the Free Software Foundation; either version 2.1 of
+-- the License, or (at your option) any later version.
+--
+-- This library is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+-- Lesser General Public License for more details.
+--
+-- You should have received a copy of the GNU Lesser General Public
+-- License along with this library; if not, write to the Free Software
+-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+--
+--
+
+-- classohm: changed AtoZ to not hide a category when an alias has been 
+--           defined for it; 
+--           changed AtoZ to allow more than one alias to be defined for 
+--           a category (version 1.0.5 / r2914, never officially released)
+-- $Id: $
+ 
 begin;
 
 \i default/add-cat_aliases.sql
diff --git a/ccm-atoz/src/ccm-atoz.upgrade b/ccm-atoz/src/ccm-atoz.upgrade
index 405ed4e25..8b34ade40 100755
--- a/ccm-atoz/src/ccm-atoz.upgrade
+++ b/ccm-atoz/src/ccm-atoz.upgrade
@@ -9,6 +9,9 @@
     <script sql="ccm-atoz/upgrade/::database::-6.3.0-6.3.1.sql"/>
   </version>
   <version from="6.5.0" to="6.6.0">
+    <!-- classohm: changed AtoZ to not hide a category when an alias
+                   has been defined for it; allow more than one alias
+                   to be defined for a category (version 1.0.5 / r2914)      -->
     <script sql="ccm-atoz/upgrade/::database::-6.5.0-6.6.0.sql"/>
   </version>
   <version from="6.6.0" to="6.6.1">
diff --git a/ccm-core/sql/ccm-core/upgrade/oracle-se-6.6.0-6.6.1.sql b/ccm-core/sql/ccm-core/upgrade/oracle-se-6.6.0-6.6.1.sql
index 98c6137af..4af87fe61 100644
--- a/ccm-core/sql/ccm-core/upgrade/oracle-se-6.6.0-6.6.1.sql
+++ b/ccm-core/sql/ccm-core/upgrade/oracle-se-6.6.0-6.6.1.sql
@@ -19,5 +19,11 @@
 
 PROMPT Red Hat Enterprise CORE 6.6.0 -> 6.6.1 Upgrade Script (Oracle)
 
+-- This update just removes database tables to store and manage style sheets.
+-- These are not used anymore but replaces by a pattern driven style sheet
+-- selection
 @@ default/6.6.0-6.6.1/drop_tables_acs_stylesheets.sql
--- not needed for oracle @@ oracle-se/6.6.0-6.6.1/recreate_users_index.sql
\ No newline at end of file
+
+-- Once while updated postgres database required, not needed for oracle, it
+-- is still/already there (during tests with Camden database). 
+-- @@ oracle-se/6.6.0-6.6.1/recreate_users_index.sql
\ No newline at end of file
diff --git a/ccm-core/sql/ccm-core/upgrade/postgres-6.6.0-6.6.1.sql b/ccm-core/sql/ccm-core/upgrade/postgres-6.6.0-6.6.1.sql
index e1daea23a..4e212cfd4 100644
--- a/ccm-core/sql/ccm-core/upgrade/postgres-6.6.0-6.6.1.sql
+++ b/ccm-core/sql/ccm-core/upgrade/postgres-6.6.0-6.6.1.sql
@@ -21,7 +21,14 @@
 
 begin;
 
+-- This update just removes database tables to store and manage style sheets.
+-- These are not used anymore but replaces by a pattern driven style sheet
+-- selection
 \i default/6.6.0-6.6.1/drop_tables_acs_stylesheets.sql
+
+-- Once while updating postgres recreation was required, while with Oracle not.
+-- may have been specific to that update situation and may probably be skipped
+-- in other postgres updates as well.
 \i postgres/6.6.0-6.6.1/recreate_users_index.sql
 
 commit;