Hi Yup..hope this can help you.
Sorry I will write it from the start.
1.Make sure that you are booting from cd-device/if not go to bios settings and changes it to boot at cd.
2.XP says...Press any key to boot from CD..._
3.XP says...Setup will now inspect your computer hardware and configuration
4.XP says...Setup now prepares your computer for install
5.XP says...From this menu press "ENTER" to begin the install
6.Now you got the blue windows xp setup screen.
Its says: Welcome to setup....This portion of the setup program prepares microsoft<R>Windows XP to run on your computer.
(a).Now you have 2 options: To setup windows xp now,press ENTER.
.to repair a windows XPinstallation using recovery consolde,press R
now XP will say:Windows XP License agreement, read, and if you agree press "F8" to continue, press "ESC" if you disagree. If you disagree setup will finish.
Now XP says. If one of the following windows XP installations is damaged,Setup can try to repair it.Use the up and down arrow keys to select an installation.
(a).To repair the selected windows XP installation,press R.
.To continue installing a fresh copy of windows XP without repairing,press ESC.
Now you will see a blue screen who says: The following list shows the existing partitions and unpartitioned space on this computer.Use the UP and DOWN ARROW Keys to select an item in the list.
(a).To set up windows XP on the selected item,press ENTER.
.To create a partition in the unpartitioned space,press C.
©.To delete the selected partition,Press D.
Now you should select D. windows XP should format your drive letter C:
Now you have to confirm that.
After confirm...windows XP is format...drive C:
After format...C: select the same partition to install win XP on.
If you cant do that,then select:
1.continue installing a fresh copy of windows XP without repairing,press ESC
2.set up windows XP on the selected item(select the c: drive letter),press ENTER
Now you should have the options to reinstall a new fresh windows copy.