Post Content?

[AzKay]

$oHTTP = ObjCreate("winhttp.winhttprequest.5.1")
$oHTTP.Open("POST", "http://www.stylephreak.com/index.php/archives/2004/08/standard-forms/")
$oHTTP.SetRequestHeader("Host", "www.stylephreak.com")
$oHTTP.SetRequestHeader("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1")
$oHTTP.SetRequestHeader("Accept", "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5")
$oHTTP.SetRequestHeader("Accept-Language", "en-us,en;q=0.5")
;$oHTTP.SetRequestHeader("Accept-Encoding", "gzip,deflate")
$oHTTP.SetRequestHeader("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7")
$oHTTP.SetRequestHeader("Keep-Alive", "300")
$oHTTP.SetRequestHeader("Connection", "keep-alive")
$oHTTP.SetRequestHeader("Referer", "http://stylephreak.frogrun.com/uploads/source/cssform_hide.php")
$oHTTP.SetRequestHeader("Content-Type", "application/x-www-form-urlencoded")
$oHTTP.SetRequestHeader("Content-Length", "194")
$oHTTP.Send()

Heres what ive got. Works fine but how would I set the "Post Content"?

In the image, Just under "Content-Length", is the post content. I dont know how im supposed to do that though.