Where can I find the final update for Adobe XI

The Adobe FTP server can be tricky to access with some clients due to permissions or connection settings. Have you tried using a browser directly to download from that URL? Sometimes, FTP clients struggle with anonymous logins on public servers. Also, for the 1328 error, it often relates to corrupted installer files—maybe try running the installer as admin or using the Adobe Cleaner Tool before updating.

Never mind I found it.  Apparently the update places the file "AcrobatUpd11023.msp" is the C:\ProgramData\Adobe\ARM\Acrobat_11.0.20.  This can be run manually--the 1328 error comes up but you can "ignore" it and the update is successfully installed.