In order to open the Help you should press Ctrl + H or go to the application's main menu and select Help -> Help. It is important to mention that the application's Help files are context-sensitive.
If you press Alt + H you will get the help files for the current frame. Achieve the same by going to the main menu -> click on the menu item called the same as the currently active frame -> Help; e.g. for a Quotes Monitor frame, go to the Quotes Monitor menu -> Help.
The following buttons can be used in order to navigate between the application Help files:
The Home button takes you back to the root Help page for the frame you are checking.
The Back button will load the previously displayed page.
The Forward button jumps to the next link.