Headers:
Outlook - Click on your message in your list (not the preview pane, but the Sort by date, etc list). Right click...Options...the Internet headers. Copy that and paste into the above mentioned TT box. Then copy the body of your email and paste also. Kind of a pain in Outlook as you have to copy/paste 2 separate things.
Outlook Express - Right click on message in Sort list...Properties...Details tab...Message Source...select all the copy, paste in above mentioned TT box.
Gmail - Click on the message...there is a little blue arrow in the upper right of the message...click that and a menu will appear below...select Show Original....select all the copy, paste in above mentioned TT box.
The reason they need headers is b/c it will show the path, date stamp, ip etc
It should look like this (w/ different info of course):
Received: from name [12.345.67.899] by mail.whatever.com with ESMTP
(SMTPD-8.22) id XXXXXXX; Fri, 28 Sep 2007 17:29:27 -0400
From: "name" <name@whatever.com>
To: <name@whatever.com>
References: <abunchofstuff@whatever.com>
Subject: your email subject
Date: Fri, 28 Sep 2007 17:29:59 -0400
Message-ID: <abunchofcharacters@name>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_xxxxxxxxxxxxxxx"
X-Mailer: Microsoft Office Outlook 11
Thread-Index: adflkjd;lskfjadl;sfja;sjkf
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138
In-Reply-To: <abunchofstuff@whatever.com>
X-IMAIL-SPAM-HTML-FEATURES: (stuff, Hyperlink)
X-RCPT-TO: <name@whatever.com>
Status: U
X-UIDL: xxxxxxxxxxxx
X-IMail-ThreadID: xxxxxxxxxxxxxxxxxx
then whatever your email was about would be here.
hope that helps. once you've done one it gets alot easier.