10.5.7, Safari 4 and iLife Support 9.03

I've poured through the forums and have spent hours trying to get a good build with the above mentioned Packages. So far haven't had much luck. Have even made sure that my host (building) OS was 10.5.6 (an install from the same CD as I'm using for my Base OS dmg). I've tried 1.4b4, v187 and 188, 200 and 210. I've tried the host OS being 10.5.6 and 10.5.7. I'm running the InstaDMG build from the same machine I want to develop the image for. But still no luck - I've had various forms of 10.5.7 either not installing fully, or Safari 4 and iLife 9.0.3 not installing. Is anyone having success with this, and if so how? Do I need to give up and build my image manually? I have a pretty tight deadline for a new image here so I'm getting very stressed and thinking I'm going to build a 10.5.6 image, then possibly do a manual update and cleanup and repackage, but that sucks. Jeff