Thanks for that. I just selected upgrade NX in my copy and received the following message....
This is to notify you that a new version of Capture NX version 1.0.1 is available for download. This version adds support for the Nikon D80 digital-SLR camera and includes fixes for some issues that occurred with Capture NX version 1.0.
Please visit the download page and select the Capture NX Trial version 1.0.1 download for details and instructions on upgrading a full version of Capture NX 1.0 to version 1.0.1.
I was hoping it would update itself as Capture 4 did but I just have to visit the download page an install trial again.