Thanks ALZDBA!
I encountered the same issue this morning. After loading the msvcr71 and msvcp71 libraries to the system32 directory, I was finally able to finish the reinstall (I tried following the advice of the error message and uninstalled SQL 2000 to turn around a do a fresh installation - which subsequently failed until copying these files into the system32 directory).
I am going to initiate a restore of the databases from last nights backup so I hope to be up and running again shortly.
Just wanted to thank you.