i need some help please !

[peace]

Hi,
I’m new in here so please be nice with me ;)
Ok here is my problem:
I need create a action where my clients type order number than they click ‘Get file Now ‘and if order number is correct download of file starts automatically .
here is example:
http://www.xewex.com/test.html

can someone help me please

Thank You
peace

[DaveSW]

can't find my favoured link, but try
http://www.webclass.ru/tut.php?tut=199

Basically they type in the file name and are directed to the file, providing it exists.