Welcome to Adobe Forums.
Just want to double check, is that Windows XP Pro SP3 or a different edition ?
To uninstall Flash Player :
1) Download Flash Player uninstaller from here
2) Close all the browser windows (Internet Explorer or Mozilla Firefox or Google Chrome)
3) Run the uninstaller, make sure uninstallation is successfull.
4) Download Adobe Flash Player from here : http://get.adobe.com/flashplayer
5) Once download is complete, run the installer
Let me know if you have any queries.
Thanks for email: YES I have a query. I Have done the installation and
despite declining all the add ons I have got them all again and to add
insult to injury I still haven't got the Flash Player. What is it about the
comment that I want a clean install of just the Flash Player I amrunning XP
with servive pack 3