Where are you looking? It should be on the CONFIGURE page on the
Birdog website --->
www.birdog.tv
Select all the DirecTv files and download those. I hope your Birdog came with the RJ45 to DB9 serial cable - you're kind of hosed without it...
If you need instructions on using the meter and downloading the files, the website also has .pdf manuals. Make sure you select the right manual depending on which firmware version your Birdog has -- you can find out which version by looking at the display when you first turn the meter on; it will show up for a few seconds.
kat