I've installed the Windows Update plugin in OCS 2.3. (I simply put the plugin .zip file in the download folder on my Unix server, and then went to the Administrative console to install via Plugins Manager. I have also placed the vb script file on the Windows client machine in Plugins folder.)
I have done this successfully with Winusers and Security plugins.
However, the Windows Update plugin consistently returns "No data available in table" when I click on the machine in Administrative console. Anyone have any ideas?