SharePoint Services 3.0 sp2

I installed Windows SharePoint Service 3 sp2 with disastrous results; SharePoint no longer runs. From the numerous errors reported it appears the upgrade failed. Attempting to fix the problem I ran psconfig.exe cmd upgrade force; no luck, failed with the message Failed to upgrade because type is not supported or was not specified. 

PcScan.exe /all reports the following:
System.IO.DirectoryNotFoundException: Could not find a part of the path "C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN\temp\1\PreupgradeReport_633779119282812500_Summary.xml".
   at System.IO.__Error.WinIOError(Int32 errorCode, String str)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
   at System.IO.StreamWriter.CreateFile(String path, Boolean append)
   at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize)
   at System.IO.StreamWriter..ctor(String path, Boolean append)
   at System.IO.File.CreateText(String path)
   at Microsoft.SharePoint.PreupgradeReport.Scan.InitLogFiles()
Failed

The upgrade log is too large to attach.

I can reinstall from backup, but I am looking for a different solution. All help will be greatly appreciated.