SmartUpload 上传问题

从书上(JSP2.0技术手册)复制的代码为什么不能用啊
<jsp:useBean id="load" class="com.jspsmart.upload.SmartUpload" scope="page"></jsp:useBean>
<%
int count=0;
load.initialize(pageContext);
//load.setAllowedFilesList("jpg,bmp,jpeg,gif");
load.setMaxFileSize(5*1024*1024);
load.upload();
try
{
count=load.save("C:\\Tomcat 5.0\\webapps\\ROOT\\tphoto\\");
out.print(count);
}
catch(Exception e)
{
out.println(e.toString());
}
%>奇怪得很啊,不知道错在哪?请帮忙啊