Place the BoR PAKs in the bordata directory.
Don't forget to edit the paklist.txt
The one in the bordata directory is just an example. Open it with
an editor enter your paks.
It's a pretty straightforward and easy thing to do
e.g.:
[FileName]=[Game Name]
The gamename can be anything you want - it's the name that shows
up at the selection screen once you run BoR.
After the last entry, there has to be at least ONE empty line.
So just press ENTER a few times to be on the safe side.