传值使用JavaScript方式吧，代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" media="all" href="/assets/css/bootstrap.css">
<link rel="stylesheet" media="all" href="/assets/css/bootstrap-responsive.css">
</head>
<body>
<TABLE>
<tr>
<td class="center">张三</td>
<td class="center">2012/10/28 22:28:42</td>
<td class="center">呵呵呵呵呵呵</td>
<td class="center">
<a class="btn btn-info" href="javascript:void(0)" onclick="dodel(1)">
删除
</a>
</td>
</tr>
<tr>
<td class="center">李四</td>
<td class="center">2012/10/28 22:31:12</td>
<td class="center">哈哈哈哈哈</td>
<td class="center">
<a class="btn btn-info" href="javascript:void(0)" onclick="dodel(2)">
删除
</a>
</td>
</tr>
</TABLE>
<div class="modal hide" id="Del">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h3>删除确认</h3>
</div>
<div class="modal-body">
<p>您确认要删除此条吗？...</p>
</div>
<div class="modal-footer">
<a href="#" class="btn" data-dismiss="modal">取消</a>
<a href="Del.asp?id=XXX" class="btn btn-primary">确认删除</a>
</div>
</div>
</body>
</html>
<script src="/assets/js/jquery.js"></script>
<script src="/assets/lib/bootstrap.min.js"></script>
<script type="text/javascript">
function dodel(id){
$('.modal').modal('show').on('shown',function(){
$(".btn-primary").attr('href','Del.asp?id='+id);
})
}
</script>