I am having problems with the example of a visulforce page that has pagination.  They don't show how the completed page should look, and I am sure something is wrong, but I don't know what.  I have googled and looked in forums and in help, but there are no anwers I can find  to create a self contained visualforce page that displays contacts with pagination.  Everything works great, but no pagination.

Can anyone point me to where I can find the completed source code?  These trails usually show you what your completed code looks like, but this one doesn't.  I am not looking for anwers to a challenge, but just what I am doing wrong.

Thank you!  

Here is my code:
<apex:page standardController="Contact" recordSetVar="contacts">
    <apex:form>
    <apex:pageBlock title="Contacts List" id="contacts_list">
        
Filter:
   <apex:selectList value="{! filterid }" size="1">
       <apex:selectOptions value="{! listviewoptions }"/>    
       <apex:actionSupport event="onchange" reRender="contacts_list"/>
   </apex:selectList>        
        
        <!-- Contacts List -->
        <apex:pageBlockTable value="{! contacts }" var="ct">
            
         <!-- pagination -->
         <table style="width: 100%">
         <tr>
             <td>
                 <!-- page X of Y -->
                 page: <apex:outputText value=" {!PageNumber} of {! ceiling(resultsize / pagesize) } "/>
             </td>
             
             <td align="center">
                 <!-- Previous page -->
                 <!-- active -->
                 <apex:commandLink action="{! Previous }" value="« Previous"
                                   Rendered="{! HasPrevious }"/>    
                 <!-- inactive (no earlier pages) -->
                 <apex:outputText style="color: #ccc;" value="« Previous"
                 rendered="{! NOT(HasPrevious) }" />

&nbsp;&nbsp;
                 
                 <!-- Next page -->
                 <apex:commandLink action="{! Next }" value="Next »"
                                   Rendered="{! HasNext }"/>    
                 <!-- inactive (no earlier pages) -->
                 <apex:outputText style="color: #ccc;" value="Next »"
                 rendered="{! NOT(HasNext) }" />
                 
             </td>
             
             <td align="right">
                 <!-- Records per page -->
Records per page:
              <apex:selectList value="{! PageSize }" size="1">
                  <apex:selectOption itemValue="5" itemLabel="5"/>
                  <apex:selectOption itemValue="20" itemLabel="20"/>
                  <apex:actionSupport event="onchange" reRender="contacts_list"/>
              </apex:selectList>   
                 
             </td>
         </tr>    
          </table>
            
          <apex:column value="{! ct.firstname }"/>
          <apex:column value="{! ct.lastname }"/>
          <apex:column value="{! ct.email }"/>
          <apex:column value="{! ct.account.name }"/>
          <apex:column value="{! ct.birthdate }"/>
        </apex:pageBlockTable>
        
    </apex:pageBlock>
</apex:form>    
    
    
</apex:page>