SP2007 - Attachments in InfoPath Form that is a Task Workflow

http://blogs.msdn.com/wael/archive/2007/12/26/attachments-in-infopath-form-that-is-a-task-workflow.aspx
File:
%Program Files%Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\LAYOUTS\application.master
Change:
<form runat="server" onsubmit="return _spFormOnSubmitWrapper();">
To:
<form runat="server" onsubmit="return _spFormOnSubmitWrapper();" enctype="multipart/form-data">