It is surprising that HP cuts costs by not giving a driver CD with their entry level laptop models. However the end user can get online and chat with an HP representative through their online chat system to get ftp URLs (mostly) pointing to the right drivers. Here are the Windows XP drivers for Compaq Presario C702TU model laptop.
Before installing the audio drivers please install the UAA drivers first. Then restart the computer and install the remaining drivers. Carefully follow on-screen instructions, if any, during the installation.
Wireless Lan Driver
Synaptics Touchpad Driver
Intel Chipset Drivers
Ricoh 5-in-1 Card Reader Drivers