Please make a full backup of your DB and run the script below.
Code:
UPDATE [dbo].Topic
SET Description = 'This is the topic Named: contact. You edit this in the ADMIN site. Your Store Name<br/>Address1<br/>Address2<br/>City, State Zip<br/>Phone: xxx-xxx-xxx<br/>FAX: xxx-xxx-xxx<br/>E-Mail: sales@yourdomain.com<br/><br/><hr size="1"/><b>Or, use the form below to send us a message</b><br/><br/><form id="MailArea" method="POST" action="sendform.aspx"><div><script type="text/javascript">function CheckFields(){var ergx = new RegExp(''\\w+([-+.\'']\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*''); if(document.getElementById("MailName").value == "" || document.getElementById("MailPhone").value == "" || document.getElementById("MailEmail").value == "" || document.getElementById("MailSubject").value == "" || document.getElementById("MailMessage").value == ""){alert("Please complete entries.");return false;} if(!ergx.test(document.getElementById("MailEmail").value)){alert("Invalid Email.");return false;}}</script></div><div align="left"><table border="0" cellpadding="0" cellspacing="0" width="454"><tr><td valign="top" align="right" width="102">*Your Name:</td><td valign="middle" align="left" width="348"><input type="text" Name="Name" size="27" id="MailName"></td></tr><tr><td valign="top" align="right" width="102">*Your Phone:</td><td valign="middle" align="left" width="348"><input type="text" Name="Phone" size="27" id="MailPhone"></td></tr><tr><td valign="top" align="right" width="102">*Your E-Mail:</td><td valign="middle" align="left" width="348"><input type="text" Name="EMail" size="27" id="MailEmail"></td></tr><tr><td valign="top" align="right" width="102">*Subject:</td><td valign="middle" align="left" width="348"><input type="text" Name="Subject" size="27" id="MailSubject"></td></tr><tr><td valign="top" align="right" width="102">*Message:</td><td valign="middle" align="left" width="348"><textarea rows="11" Name="S1" cols="41" id="MailMessage"></textarea></td></tr><tr><td width="102"></td><td width="348"><input type="Submit" value="Submit" Name="B1" onclick="return CheckFields();"></td></tr></table></div></form>'
WHERE Name = 'contact'
* if you've customized the contents of your "contact" topic already, make a backup first by renaming it to 'contactbak' in the Topic Manager's page in the admin before running the above script. Otherwise, your existing contact topic will be overwritten.