If you don't see any LightScribe-related stuff in Acoustica CD/DVD Label Maker (such as a "LightScribe" button on the main toolbar or a "LightScribe" page on the Preferences dialog), it probably means you haven't installed the LightScribe System Software.
You can download the LightScribe System Software HERE.
There are a couple other LightScribe software prerequisites as well: you need to be running Windows 2000, XP, or Vista, and you also need to be running version 3 or higher of Acoustica CD/DVD Label Maker for LightScribe to work.
Download Acoustica CD/DVD Label Maker Version 3
Learn more about Acoustica"s LightScribe Software