Below are directions on how to add a search input box.
**** Below is code for Alta Vista.
<FORM method=GET action="http://www.altavista.digital.com/cgi-bin/query">
<INPUT TYPE=hidden NAME=pg VALUE=q>
<INPUT NAME=q size=33 maxlength=200 VALUE="">
<INPUT TYPE=submit VALUE=Find>
<a href="http://www.altavista.digital.com/"><b>Alta Vista</b></a>
</FORM>
****Below is code for Lycos.
<FORM ACTION=http://www.lycos.com/srch/ METHOD=GET>
<INPUT TYPE=hidden NAME=lpv VALUE=1>
<INPUT TYPE=hidden NAME=loc VALUE=searchhp>
<td width=15><font face=verdana size=1> </font></td>
<td><INPUT TYPE=text NAME=query size=25>
<input type=image src="http://a676.g.akamai.net/f/676/987/12h/lygo.com/ly/g.gif" width=85 height=18 align=absmiddle border=0 alt=""></td>
<a href="http://www.lycos.com/"><b>Lycos</b></a>
</FORM>
****Below is code for Yahoo.
<form action=http://search.yahoo.com/bin/search>
<td colspan=3 align=center><input size=30 name=p>
<input type=submit value=Search>
<a href="http://www.yahoo.com/"><b>Yahoo</b></a> </FORM>