Jesus,
the Administrator password on Windows XP Home is left blank by default.
It sounds like you're trying to access the Recovery Console to repair your
XP installation. That may not be the best choice for you. Try hitting
Enter instead of R on the first screen that asks about recovery. After
that, Setup will scan your computer for Windows XP installations. If it
find any, you'll be given the chance to perform a repair installation. This
is most likely the option you want.
--
Mike Kolitz MCSE 2000
MS-MVP - Windows Setup and Deployment
Remember to check Windows Update often,
and apply the patches marked as Critical!
http://windowsupdate.microsoft.com