First of all, I don't know what manual you are referring to.
Secondly, do you have Windows XP CD, or Recovery CD.
If it's Windows XP CD, follow steps from this manual:
http://www.winsupersite.com/showcase/windowsxp_sg_clean.aspAt step 5, you'll want to:
The screen will now list all existing partitions and un-partitioned space for each hard disk. Use the cursor/arrow keys to select existing partition(s) (if you see more, then one). Press D to delete an existing partition. If you press D to delete an existing partition, you must then press L to confirm that you want to delete that partition. Repeat this process for each of the existing partitions in order to create your new partition. When all partitions are deleted, you can then select the remaining un-partitioned space and then press C to create new partitions.