URL Loading Error - Zope+MySQL

Hi All,

I'm trying to add data in mysql database using DTML in Zope.

But, all other fields are okay. But, url fiels does not call URL I entered. 
Instead it
generates the url for add dtml method like 
http://www.thegateway.org/about/gemingeneral/gemConsortium/memberDirectory/contactadd.

Could you give me some piece of advice how to handle?
Any advice would be really appreciated. Best regards, Nam

Here is my add dtml method:
<dtml-var standard_html_header>
<dtml-if submit>
<dtml-call contactadd3>
<h2>New Member Information Added!!</h2>
<p>
<a href="memberlist2">View all Member Information</a>|
<a href="selectcall?SiteID:string=<dtml-var SiteID>">View Added 
Information</a>
<br>
<a href="edit1">Edit Member Information</a> |
<a href="delete">Delete Member Information</a> |
<a href="contactadd">Add Member Information</a>
<br>

<dtml-else>
<h1>Member Information Add</h1>
<form action="contactadd" method="POST">
<table width="95%" cellspacing="0" >
  <tr>
    <td width="20%"><div align="center"><strong>SiteID:</strong></div></td>
    <td width="80%"><input name="SiteID" width=30 value=""></td>
  </tr>

<tr>
    <td width="20%"><div align="center"><strong>Agency:</strong></div></td>
    <td width="80%"><input name="Agency" width=30 value=""></td>
  </tr>

<tr>
    <td width="20%"><div align="center"><strong>URL:</strong></div></td>
    <td width="80%"><input name="URL" width=30 value=""></td>
  </tr>

<tr>
    <td width="20%"><div align="center"><strong>Last 
Name:</strong></div></td>
    <td width="80%"><input name="LastName" width=30 value=""></td>
  </tr>

<tr>
<td colspan=2 align=left>
<input
type="submit" name="submit" value="Add">
<input type="reset" name="cancel" value="Cancel">
</td>
</tr>
</table>
</form></dtml-if><dtml-var standard_html_footer>

Here is memberlist2 page:
<dtml-var standard_html_header>
<h2>Member Information Update</h2>
<ul>
<dtml-in selectAllMethod>
<li> <dtml-var SiteID>
<br>

<font size="-1"><a href="editcall?SiteID=<dtml-var SiteID>">Edit</a>|<a 
href="delete?SiteID=<dtml-var SiteID>">delete</a></font>

<p>
</dtml-in>
</ul>

<br>
<a href="contactadd">Add a New Member Information</a>
<dtml-var standard_html_footer>

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