求助 VB post 模拟提交页面问题

Question

俺的代码
Dim myurl As String, send_data As String, my_head As String
myurl = "http://jybox.net/user/join"
send_data = "Confirm=w123456&email=[e-mail]&password=w123456&submit=注册&token=bec8183e5bcdb&username=cc003"my_head = "Content-Type: application/x-www-form-urlencoded"
Inet1.Execute myurl, "POST", send_data, my_head

执行完后 啥反应都没有 值没有提交入http://jybox.net/user/join这个网页

哪位大神给帮忙看看 不胜感激