Capurso,
Trial versions can only be upgraded to the existing product on your machine.
In order to do this you would need to purchase Office 2003 Pro. If you have a
prior version that is supported you could purchase an upgrade version. See
this article:
http://support.microsoft.com/default.aspx?scid=kb;en-us;832288
As well, you could convert your trial version to standard then purchase the
stand alone version of the applications not included in your trial version.
Likely that your expense would be less to purchase the Office 2003 Pro
version as an upgrade if you qualify.
Chris Schatte
use the Office Online web based newsreader here:
http://www.microsoft.com/office/community/en-us/default.mspx
In Office System 2003 applications:
Help/Assistance Pane/open Communities