I am looking through your modification's XHTML code and I can see that it is not XHTML compliant. Is there any possibility of fixing this in version 1.0.2?
Edit: I tried cleaning up the XHTML as much as I could but I could not make it XHTML compliant without breaking the plugin. If it helps, here is what I managed to do:
HTML Code:
$stylevar[htmldoctype]
<html dir="$stylevar[textdirection]" lang="$stylevar[languagecode]">
<head>
$headinclude
<title>$vboptions[bbtitle] - $vbphrase[search_forums]</title>
</head>
<body>
$header
$navbar
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
<td class="tcat">BoardTracker $vbphrase[thread] $vbphrase[search]</td>
</tr>
<tr>
<td class="alt1">
<table width="100%" border="0" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]">
<tr>
<td align="left">
<form style="margin: 0px;" action="" method="get">
<table cellpadding="0" cellspacing="4">
<tr>
<td>$vbphrase[key_words]</td><td><input name="search" id="BT_SEARCH_INPUT" value="" /><input type="submit" value="$vbphrase[search_now]" /></td>
</tr>
<tr>
<td>$vbphrase[find_posts_from] </td>
<td><select name="scope" id="BT_SEARCH_SCOPE">
<option value="0">$vbphrase[yesterday]</option>
<option value="1">$vbphrase[a_week_ago]</option>
<option value="2">$vbphrase[a_month_ago]</option>
<option value="3">$vbphrase[a_year_ago]</option>
<option value="4">$vbphrase[any_date]</option>
</select></td>
</tr>
<tr>
<td>$vbphrase[sort_results_by]</td>
<td><select name="order" id="BT_SEARCH_ORDER">
<option value="0">$vbphrase[thread_start_date]</option>
<option value="1">$vbphrase[relevancy]</option>
</select></td>
</tr>
</table>
</form>
</td>
<td align="right">
<span><span id="BT_SEARCH_POWEREDBY" name="BT_SEARCH_POWEREDBY" /></span><br />
<br />
<span id="BT_SEARCH_NAVBAR" name="BT_SEARCH_NAVBAR" style="display:none">
<table cellpadding="0" cellspacing="0" border="0" width="100%" style="margin-bottom:3px">
<tr valign="bottom">
<td align="right"><div class="pagenav" align="right">
<table class="tborder" cellpadding="3" cellspacing="1" border="0">
<tr>
<td class="vbmenu_control" style="font-weight:normal"><phrase 1="<SPAN ID=BT_SEARCH_RESULTS_PAGES_CURRENT NAME=BT_SEARCH_RESULTS_PAGES_CURRENT></SPAN>" 2="<SPAN ID=BT_SEARCH_RESULTS_PAGES_COUNT NAME=BT_SEARCH_RESULTS_PAGES_COUNT></SPAN>">$vbphrase[page_x_of_y]</phrase></td>
<td class="alt2 smallfont"><span id="BT_SEARCH_RESULTS_PAGENAV" name="BT_SEARCH_RESULTS_PAGENAV"></SPAN></td>
</tr>
</table>
</div></td>
</tr>
</table>
</span>
</td>
</tr>
</table>
<span id="BT_SEARCH_RESULTS" name="BT_SEARCH_RESULTS" style="display:none;">
<table name="BT_SEARCH_RESULTS_TABLE" id="BT_SEARCH_RESULTS_TABLE" class="tborder" cellpadding="6" cellspacing="1" border="0" width="100%" align="center" id="threadslist">
<tr>
<td class="tcat" colspan="5" style="font-weight:normal">
<span class="smallfont" style="float:right">
<span class="smallfont"><phrase 1="<SPAN ID=BT_SEARCH_RESULTS_THREADS_START NAME=BT_SEARCH_RESULTS_THREADS_START></SPAN>" 2="<SPAN ID=BT_SEARCH_RESULTS_THREADS_END NAME=BT_SEARCH_RESULTS_THREADS_END></SPAN>" 3="<SPAN ID=BT_SEARCH_RESULTS_THREADS_COUNT NAME=BT_SEARCH_RESULTS_THREADS_COUNT></SPAN>">$vbphrase[showing_results_x_to_y_of_z]</phrase>
</span>
</td>
</tr>
<tr>
<td class="thead" width="75%">$vbphrase[thread] / $vbphrase[thread_starter]</td>
<td class="thead" width="150" align="center" nowrap="nowrap">$vbphrase[bt_thread_created_on]</td>
<td class="thead" align="center" nowrap="nowrap">$vbphrase[replies]</td>
<td class="thead" align="center" nowrap="nowrap">$vbphrase[views]</td>
</tr>
<!--[BT_SEARCH_RESULTS_TABLE_FILL]-->
</table>
<table id="BT_SEARCH_RESULTS_TEMPLATE" style="display:none">
<tr>
<td class="alt1">
<div>
<a href="[HREF]&highlight=[SEARCH]">[TITLE]</a>
</div>
<div class="smallfont">
<span style="cursor:pointer" onclick="window.open('[AUTHOR_URL]')">[AUTHOR_NAME]</span>
</div>
</td>
<td class="alt2" title="Replies: [REPLIES], Views: [VIEWS]">
<div class="smallfont" style="text-align:right; white-space:nowrap">
<span class="time">[CREATED]</span>
</div>
</td>
<td class="alt1" align="center">[REPLIES]</td>
<td class="alt2" align="center">[VIEWS]</td>
</tr>
<tr>
<td class="alt1 smallfont" colspan=4>[SNIPPET]</td>
</tr>
<tr>
<td class="alt2" colspan=4 style="font-size:6px; height:10px"></td>
</tr>
</table>
<table width="100%" border="0" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]">
<tr>
<td align="right">
<span id="BT_SEARCH_POWEREDBY" name="BT_SEARCH_POWEREDBY" />
</td>
</tr>
</table>
</span>
<span id="BT_SEARCH_NORESULTS" name="BT_SEARCH_NORESULTS" style="display:none;">
<br />
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="70%" align="center">
<tr>
<td class="tcat">vBulletin Message</td>
</tr>
<tr>
<td class="panelsurround" align="center">
<div class="panel">
<div align="left">
<blockquote><p>Sorry - no matches. Please try some different terms.</p></blockquote>
</div>
</div>
</td>
</tr>
</table>
<br />
<br />
</span>
<span id="BT_SEARCH_INPROGRESS" name="BT_SEARCH_INPROGRESS" style="display:none;">
<center>
<br />
<font size="1">
$vbphrase[bt_search_loading_results]<br /><img src="http://www.boardtracker.com/images/dog_hourglass_small.gif" alt ="" />
</font>
<br />
<br />
</center>
</span>
</td>
</tr>
</table>
$footer
<script type="text/javascript">
var Search_SafeFilter = {$vbulletin->options['boardtracker_search_safe_filter']}; //Default
var Search_Category = {$vbulletin->options['boardtracker_search_categoryid']}; //Default
var Search_Order = {$vbulletin->options['boardtracker_search_order']}; //Default
var Search_Scope = {$vbulletin->options['boardtracker_search_scope']}; //Default
var Search_BoardLimit = "{$vbulletin->options['boardtracker_search_boardid']}"; //Default (empty) = All boards. Can chain board IDs using comma (i.e. 25,26,45)
var Search_SearchTerm_Default = "{$vbulletin->options['boardtracker_search_default']}" // Can be set to force default search
</script>
<script type="text/javascript" src="http://www.boardtracker.com/search.js"></script>
</body>
</html>
By the way, it seems that the default BoardTracker Search plugin does not work in Internet Explorer 7.0 Beta 2 and Opera 9.0 Beta 2. Also, I noticed that the default page navigation does not match the style used by vBulletin.
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