OK, I think I see what is happening.
Here's what I do. First, I install the boot drive in the SATA0 channel. You can select any channel but the BIOS automatically looks the for the boot device.
Now, you are using an external DVD drive. So you need to go into the BIOS and change the boot order to something like:
1. External CD drive (or whatever your BIOS says).
2. Hard drive.
Install Windows. After you install Windows, go back into the BIOS and change the boot order to put the hard drive first.
I use the driver disk that came with the motherboard. Never had any problems with the "old" drivers.
Install antivirus and firewall software. Do not go on line before you do this.
Go online and update Windows, firewall, and antivirus software.
Download and install the video drivers if you are using a separate video card. The downloaded video drivers will be newer than anything on the disk.
Install any other device drivers (printer, for instance) that you need.
Then, after you have a fully working and patched (latest updates) system, make a backup image of the hard drive. That will save you a lot of time [strike]if[/strike] when you need to reinstall your OS. In fact, I do that twice - once for the basic system (OS and drivers) and once for what I call my "basic " software load (my standard apps and utilities).