diff --git a/internals/pdo/index.xml b/internals/pdo/index.xml
index 9ae9f0aaa5..630c7d734a 100644
--- a/internals/pdo/index.xml
+++ b/internals/pdo/index.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- 
   Authors:
     Bill Abt and Rick McGuire of IBM
@@ -46,14 +46,14 @@
     Please note that this is still an evolving API and as such, subject to
     change. This document was prepared based on version 0.3 of PDO.
     The learning curve is steep; expect to spend a lot of time on the
-    pre-requisites.
+    prerequisites.
    </para>
   </abstract>
  </chapterinfo>
 
  <title>PDO Driver How-To</title>
 
- <sect1>
+ <sect1 id="internals.pdo.intro">
    <title>A brief note about this How-To</title>
    <para>
     The original version of this PDO driver specification was written by
@@ -63,10 +63,10 @@
    </para>
  </sect1>
 
- <sect1>
-  <title>Pre-requisites</title>
+ <sect1 id="internals.pdo.prerequisites">
+  <title>Prerequisites</title>
   <para>
-   The following is list of pre-requisites and assumptions needed for writing
+   The following is list of prerequisites and assumptions needed for writing
    a PDO database driver:
   </para>
   <orderedlist>
@@ -113,7 +113,7 @@
     </listitem>
   </orderedlist>
  </sect1>
- <sect1>
+ <sect1 id="internals.pdo.preparation">
   <title>Preparation and Housekeeping</title>
   <sect2>
    <title>Source directory layout</title>
@@ -293,7 +293,7 @@ pdo_SKEL/
   </sect3>
   </sect2>
   </sect1>
-  <sect1>
+  <sect1 id="internals.pdo.implementing">
    <title>Fleshing out your skeleton</title>
 
   <sect2>
@@ -1555,7 +1555,7 @@ static int SKEL_handle_preparer(pdo_dbh_t *dbh, const char *sql,
  </sect2>
  </sect1>
  
- <sect1>
+ <sect1 id="internals.pdo.building">
   <title>Building</title>
   <para>
    The build process is designed to work with PEAR (see <ulink
@@ -1596,7 +1596,7 @@ $ sudo make install
   </para>
   </sect1>
 
-<sect1>
+<sect1 id="internals.pdo.testing">
   <title>Testing</title>
   <para>
    PDO has a set of "core" tests that all drivers should pass before being
@@ -1666,7 +1666,7 @@ $ make TESTS=ext/pdo_SKEL/tests PDO_SKEL_TEST_DSN="skel:dsn" \
 
 </sect1>
 
-  <sect1>
+  <sect1 id="internals.pdo.packaging">
   <title>Packaging and distribution</title>
   <sect2>
    <title>Creating a package</title>
@@ -1714,7 +1714,7 @@ $ sudo pear install PDO_SKEL-X.Y.X.tgz
   </sect2>
   </sect1>
 
-<sect1>
+<sect1 id="internals.pdo.pdo_dbh_t">
   <title>pdo_dbh_t definition</title>
   <para>
    All fields should be treated as read-only by the driver, unless explicitly
@@ -1897,7 +1897,7 @@ struct _pdo_dbh_t {
     </callout>
   </calloutlist>
  </sect1>
- <sect1>
+ <sect1 id="internals.pdo.pdo_stmt_t">
   <title>pdo_stmt_t definition</title>
   <para>
    All fields should be treated as read-only unless explicitly stated
@@ -2027,7 +2027,7 @@ struct _pdo_stmt_t {
   </calloutlist>
   </sect1>
 
-  <sect1>
+  <sect1 id="internals.pdo.constants">
   <title>Constants</title>
   <table id="internals.pdo.table.attributes">
   <title>Database and Statement Attributes Table</title>