slipstreaming is relatively easy.
All it is is creating a bootable cd with the windows XP installation folder (I386) plus the neccessary driver files for the computer and as well as the specific updates that are needed to conform to security issues.
One can add as much or as little to this as one wishes...including the installations of extra specific programs and applications. Basically it is designing and putting together a specific installation CD for a particular computer. The work is all ready set up and you just follow the prompts.
Here follow this guide and you will do just fine! How To: Slipstream your XP installation | Maximum PC
It is pretty much step by step and will tell you where to find certain software to use!