[Admin]

Ok this is an easy one.

In memberlistsearch template, add this:

<tr>
	<td bgcolor="{firstaltcolor}"><normalfont><b>and Location contains</b></normalfont></td>
	<td bgcolor="{firstaltcolor}"><normalfont><input type="text" class="bginput" size="35" name="location" value=""></normalfont></td>
</tr>

right after this:

</tr>
<tr>
	<td bgcolor="{secondaltcolor}"><normalfont><b>and homepage contains</b></normalfont></td>
	<td bgcolor="{secondaltcolor}"><normalfont><input type="text" class="bginput" size="35" name="homepage" value=""></normalfont></td>
</tr>

Now in memberlist.php, add this:

    if ($location!="") {
      $condition.=" AND userfield.field2 LIKE '%".addslashes($location)."%' ";
    }

right after this:

    if ($homepage!="") {
      $condition.=" AND homepage LIKE '%".addslashes($homepage)."%' ";
    }

(if the ID of your location field isn't 2, change it in the code you add)