P3Support

Hi, I'm trying to use nLite to create a Windows XP bootable CD to do a new install. I've been able to create an ISO with WinXP SP3 on it and the applicable SATA Intel drivers. I've even copied it to a CD-RW. I'm VERY new at this, so forgive my ignorance. The ISO file will not auto-run. So, I searched the net and found a program that will burn the ISO to the CD. The program appears to be that when it goes to write to the CD -- the files are too large for a CD. I've read in numerous places, while trying to get this to work, that nLite is the way to go to create a bootable XP CD for SATA. But for the life of me, can't get this to go. The computers I want to use this on will have clean HDs. No floppy drives. I'd love to get it to work with XP SP3 in unattended mode. I've even downloaded the SP3 exe file. Any ideas where I'm going wrong ? Please help. Chuck