Trouble with uploading files using MX file field

Hello
I am trying to use the form browse facility to enable clients to upload files
to the server using a file field in a form. The MX Help instructions tell me
that the file will be put where the Action property of the form directs it. But
it doesn't make sense because if I'm using a form I'll want the action to go to
the page that should open next, not a folder on the server? When I do it I get
an error message that the page cannot be found. The code created by MX goes
something like this:

<form name="form1" enctype="multipart/form-data" method="post"
action="http://www.website.co.nz/documents/other/">

Clearly I have misunderstood the instructions and am doing something wrong.
Any help would be greatly appreciated.
Regards