Your browser will show you a screen that looks something like this
Select Open. Sometimes the button will be named Run
Now, your PC will begin downloading the software, and you will see a screen that looks like
After the download is complete, the installation program will start up.
Follow the instructions from the installation program.
Typically, this will involve clicking Next a couple of times.
BBO is now installed on your computer. You will see a shortcut to Bridge Base Online on your desktop.
Launch the shortcut. You will have to create a username and password for yourself the first time you use BBO.
You can read the help for the BBO program.
In addition, once you log in, you can click on the Bridge Library button, then on any of the tutorials.
Lastly, you will notice upon login that you are presented with a list of usernames. Some of these are in yellow.
These are support staff. Click upon any yellow name to send him or her a question.