Ok I am going through it, 606,000+ differences lol
I have to head out in a few to go to a school thing for my girls so I may not have something for you till monday.
One thing I would like you to check, in the device manager Go to the IDE ATA/ATAPI Controllers and expand it, How many controls are listed either ATA Controller 0 and 1 or Primary and Secondary.
Open each one and go to the advanced settings tab. Here it should show how many devices are hooked up. Normally the hard drive will be on one controller while the cd rom drive will be on another.
And get me screen shots of this
Reason why is the log is showing a lot of differences there and this is also another way to see if the drive is at least in there.
Shane