Bob;
There is no "Last known good configuration".
The one you are attempting to use is based on nonexistent hardware.
You need to perform a Repair Installation to properly detect the new
hardware.
Repair Installation: http://www.dougknox.com/xp/tips/xp_repair_install.htm
Windows Updates will need to be reinstalled.
Data should be safe, back-up important data just in case.
Install Service Pack first and by itself.
Then install ALL Critical Updates no more than 4 at a time,
Disconnect the network/modem cable before starting repair and do NOT
reconnect the cable until repair is completed and firewall is
installed/enabled. http://support.microsoft.com/?kbid=283673
Bob;
Because you do not want or need the Recovery Console for a Repair
installation.
Many people hit that R without reading all the instructions and then
they are lost at a command prompt.