Instructions can be found online at the promethean website. When following the instructions, in step 3, please change the following from:

If using ACTIVprimary2 please go to start > all programs > ACTIVsoftware > ACTIVprimary2 > ACTIVslate controller.
To:
If using ACTIVstudio3, please go to start > Programs > ACTIVsoftware > ACTIVstudio3 > ACTIVslate controller.

You can also register the ACTIVslate from the Dashboard. Click on the CONFIGURE tab to access this feature.