Stephanie, you may have tried calling their support voice line. They operate out of Seattle, starting at 10 AM their time (1 PM our time on the East Coast).
BLS-2019 has a manual built into the program, under the Help menu. It opens in Acrobat Reader.
If there's a specific question (or two or more) that you have, please post them here. On here, I am a volunteer league secretary (I don't work for CDE) and can try to help if I know specifically where an issue exists, to help you get ready for tonight. Based on your original post, I just can't tell where to start.
TeamCDE Volunteer
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Always check, download, and install the most recent update of your software to ensure that issues may have been corrected.