Q: Upgrade issues on Lombard to OS X 10.4 Tiger using XPostfacto

I never get to that point. I start XPostfacto, and the screen comes up showing the hard drive, 2 options to restart in, OS X and OS 9 (Which is not on the laptop anyways) so I leave it on OS X, there is also a button that says restart now in this area. Then on the bottom it says NVRAM options which I left alone. When I insert the install DVD is shows up in the XPostfacto window between the 2 previous options and says select install CD and a button there that says install from cd.when I press that button a box comes up that says "Are you sure you want to install Mac OS X now?" and below that it says " your computer will restart from Mac OS X Install DVD, and install Mac OS X 10.4 to my hard drive. I select install and it starts installing extensions, and updating extensions. Then it comes to a new window that says synchronizing and usually this is where it would bomb out with the error message in my original message. I was going through the actions as I was writing this and it passed that spot now and said it was going to restart with the OS X dvd, but I walked away for a minute and when i came back there is a new message here. because of a problem, installing Mac OS X could not be sompleted. In the log it says Thread 0 crashed then a bunch of other info, then another Thread 0 crashed with PPC Thread state and a bunch of other info after that. and that is where it sits right now. I clicked restart and it came up with 8 apples across the top of the screen. and i could hear the DVD running and stopping. I did a restart and reset the pram and ejected the dvd and it looked like it was going to restart, but then the normal apple that was there was gone and now there is a circle with a line thru it on the screen and it woun't boot back to the original version.