Hi Jim,
Step one with any Veritas problem is to throw away your crappy IDR CD, and any license you may have for the option whilst you're at it.
Now that you've got some decent software:
- Install a base WIndows 2003 install, using same PC name
- Install SP1
- Install BE
- Install BE SP4a
- Inventory, catalogue and restore your C: and System State
- Boot in safe mode, go to the device manager and remove all old non-existant hardware. You will need to set the DEVMGR_SHOW_NONPRESENT_DEVICES=1 variable for this.
- Install your new NICs
- Bootup and install any manufacturer specific drivers or hardware related software
- Reboot
- Restore your data
As long as the HAL is identical between these servers, you should be fine. Unfortunately if you are going from an MP to UP PC, you will have further complications.