if the blue scree on death appears on your HP Pavilion dv2550se while installing windows xp, you need ICH9M-EM SATA AHCI Controller Driver.
incorporate the driver into your Windows XP installation CD by using software such as nLite.
ICH9M-EM SATA AHCI Controller Driver
File name: sp39548.exe [1/1, 21.12M]
Version: 220.127.116.119 A
To perform Slipstream Guide you can read my tutorial here:
Slipstream Guide To install windows XP Drivers