mrs.michaelcorleone

hello everyone. i have a very noob query which i hope wouldn't irritate anyone. i am using nlite 1.4.9.1 and i would like to integrate updates and program addons to my windows xp sp3 installer. from MSFN's unattended windows tutorial,i learned that nlite can only slipstream the latest hotfixes so i used the svcpack.inf method to integrate windows updates which i downloaded using WUD, saved in i386/svcpack folder then created svcpack.inf file whilst deleting svcpack.in_. problem arose when i integrated program addons using nlite. nlite deleted svcpack.inf and made a svcpack.in_ file. is there a way to manually slipstream hotfixes while automatically integrating program addons via nlite? or is there another method for a beginner to slipstream windows updates and program addons to xp sp3 installer? thanks!