vulcanised is correct. You cannot remove IE and Outlook Express from XP.
However, if you really INSIST on having XP without these items, then this is a workaround.
Download
nLite - Deployment Tool for the bootable Unattended Windows installation and then create your own installation disk without IE and OE. Use your own installation disk, slipstream in SP3 if it is not on that disk, insert all your own drivers and add all hotfixes to date -
RyanVM's Windows XP Post-SP3 Update Pack Then burn the ISO image, back up all your data and reinstall your own personalised XP.
Sounds a lot of work, but with this new disk it is a piece of cake to do.
Good luck!