The file is called BT.exe.
Once downloaded you can move it to a easily accessed place or leave it in the downloads folder. You can also just re download as and when needed.
The program will load in Internet Explorer,
Once it has loaded in Internet explorer and you want to use chrome you can copy the URL ( Address) and paste it into Chrome, and close Internet explorer.
But to be honest it works the same in both chrome and IE.
Recorded Training Videos are available here.