There is a way to do it but it can be dangerous, and that is use the find and replace tool.
for example find the piece of code you want replaced in your case
- HTML: Select all
<td><a href="index.html" target="_parent"><strong>Home</strong></a></td>
</tr>
<tr>
<td><a href="courses.html" target="_parent"><strong>Courses</strong></a></td>
</tr>
<tr>
<td><a href="latestinfo.html" target="_parent"><strong>Latest Information</strong></a></td>
</tr>
<tr>
<td><strong><a href="link.html">Useful Links</a></strong></td>
</tr>
<tr>
<td><strong><a href="aboutdmu.html">About DMU</a></strong></td>
</tr>
<tr>
<td><strong><a href="aboutcse.html">About CSE</a></strong></td>
</tr>
<tr>
<td><strong><a href="contactus.html">Contact Us</a></strong></td>
</tr>
<tr>
<td><strong><a href="faqs.html">FAQ's</a></strong></td>
</tr>
<tr>
<td><strong><a href="rss.html">RSS Feeds</a></strong></td>
</tr>
<tr>
<td><strong><a href="wherearewe.html">Where are we?</a></strong></td>
</tr>
</table>
then in the replace section add all the above code plus your new link and submit the request.(ensure it is set to "entire current local site")
I would strongly advise backing up your files before doing this as it is not reversible