Exoress Mode is a free program that will allow you to use the BX files as keyboard fonts. More detailed instructions can be found in the PDF file that was included with your purchased collection.
You may install the program using the Downloads link at the top of embrilliance.com. You would want to select the correct operating system for the Embrilliance Platform, which is the first title on the Downloads page.
If you are using Embrilliance Express, there is no serial number. Please click 'Done' to open the program in 'Express mode'. That PDF file will have important information in it on using the Express version including how to add your BX files to the program so please check it out!
If you are running Windows, be sure to UNZIP the BX files prior to installing them. The installation program will not work if you try to drag the BX file from the zip to the program. Sometimes it is easier to simply double-click the .BX file to run the installation of the font.