By reboot do you mean reinstall? 

yes sorry,

 i  have7 discs 1 red (operaring system),3blue(1drivers and utilities for dell,cyberlink,sonic),1blue(driversand utilities for dell dimensions),2 green (system software for dimension eurotools)

 

i have no idea which order to apply these or if it matters

 

thanks for any help

http://www.michaelstevenstech.com/cleanxpinstall.html
http://www.winsupersite.com/showcase/windowsxp_sg_clean.asp
http://www.djdenham.com/Install%20Procedures.htm#Install

Driver Installation:
http://support.dell.com/support/topics/global.aspx/support/dsn/en/document?c=us&cs=19&docid=1A0C0937D62A8739E0401E0A55174744&journalid=4F1F82483DC811DBAE564F9328EE04A4&l=en&s=gen

http://support.dell.com/support/topics/global.aspx/support/dsn/en/document?c=us&cs=19&l=en&s=dhs&dn=1090643

To find and download the drivers for your system, scroll down the page on click on
"Drivers and Downloads". Then enter your Service Tag or model number of your computer.
Select your operating system and then download the drivers that you need.