I'd like to download the ms office 2003 - Computers & Internet

You won't find the download link as office 2003 is not supported anymore. (had same issue as I owned office 2003 had to go to office 365)
I am not sure if later versions of office would run with office xp ?
suggest trying open office
https://www.openoffice.org/download/
and see if it works on your windows xp.

It is not possible to update Ms office 2003 to Ms office2010 directly....
You need to uninstall the existing MS office 2003 and perform a clean install for Ms office 2007 or 2010
Anyhow you can update the service pack for Ms office 2003 online, which will add additional features for existing office package...

Paz,
You can not download MS Office components. You can only purchase them, which I suppose you do not want to do. So???
So, forget about MS Office and instead, download Open Office Suite from www.openoffice.org free. Besides being free it is fully compatible with MS Office. You can create/open, edit and save MS Office files in Open Office.
Cheers.

go to this below web site and download ms office 2003...
http://www.bestsoftware4download.com/software/t-free-microsoft-office-2003-download-plonpaej.html

Go to http://download.cnet.com/1770-20_4-0.html?query=vuze&tag=srch&searchtype=downloads&filterName=platform%3DWindows%2CWebware&filter=platform%3DWindows%2CWebware

To download the torrent application Vuze

After downloading vuze go to http://www.isohunt.com and search for ms office 2003. Then choose A MS office file with the crack or activation key. Inside there should be information on how to use the crack. When the torrent download is complete double click on the torrent application and Vuze should open and start downloading the MS Office 2003. When the download is done you have your MS Word 2003 in MS Access

Download and install the below patch in your office computer:-

http://www.microsoft.com/downloads/details.aspx?familyid=941b3470-3ae9-4aee-8f43-c6bb74cd1466&displaylang=en

MS Office 2003 does not have a free download; but you can go to Open Office, the download is free and you can save your files as <.doc, .xls, etc.> so others can open them with MS Office

There is no free download for MS-Office.
you can get smiliar appliction from openoffice.org. They will work with all MS applications.

You Can download office Student and teacher or Office Standard edition from the following link

http://download.microsoft.com/download/6/2/3/6233A257-16BD-4C8D-BF4C-6FA59AF9213A/OfficeSTD.exe