On a PC you can edit the track metadata directly once you've located the file.
Step 1) Left-click on the audio file desired.
Step 2) When The pop-up menu appears, Click on the "Properties" tab (at the bottom).
Step 3) In the Properties popup, under the "Details" tab you will see various fields.
The fields of importance to Live 365 are title, contributing artist(s) and album. These fields correspond to the metadata fields in the Tracks section of Live365.
If you imported the file into your Live365 library without all the metadata, don't worry. You can also edit the metadata in the Live365 interface.