On my system there is a menu item for Play on Linux and under it a
link to the one programme I installed with it. Failing that you could
try re-installing and/or typing the name of the main executable in a
terminal window - same name you would have used in Windows. You can
also often find a lot of information just by doing a Google search for
Play on Linus and MS Streets and Trips, or some variation of that.

If you cannot find the link you can open the exe file itself. Wine has a
dummy C: directory with a Windows structure inside. It is at .wine/drive_c/
in your home folder. There is a subdirectory Program Files and the
application will be installed there. If you cannot see the folders beginning
with a dot press Ctrl+H and it will show hidden folders which begin with
dots.

I understand that when installing through 'Play on Linux' you start
the installed program through 'Play on Linux' too so have you looked
in there to see if the program is showing ?

Also, not all programs run or install successfully even though the
installer appears to have completed so if it's not there then that
could be the problem.

BTW - Google Maps has pretty much the same functionality of Streets
and Trips and that's free

Play onLinux uses Wine. The applications are installed in a folder within
the .PlayonLinux hidden folder called wineprefix where there is a dummy c
drive just as in Wine and the icons should appear in the Wine menu. If you
try to install anything in PlayonLinux and you do not have Wine then it will
install it first thing. It allows multilpe instances of Wine with different
versions, but everything is installed in the .wine dummy c drive previously
mentioned. PlayonLinux has no menu of its own and you do not launch from the
application. It is an installer only. Ironically PlayonLinux places its own
icon in the Games menu, but it has no sub-menus. At least that is the way it
is on my system.

As a follow up to my previous response, I am in error in one thing. You can
launch some applications from PlayonLinux. There is a Run menu. Sorry about
that. The rest is accurate.

Thanks to all for the suggestions. Somehow I managed to uninstall "Play on
Linux". When I reinstalled it it now shows up in the "Games" menu instead of the
"Wine" menu. I installed the Streets and Trips after that happened. After your
suggestions I went looking for the Streets and Trips shortcut again and I found
it in the "Wine" menu. It does start OK from there. I have found out how to make
a desktop shortcut but can anyone tell me how to move a menu short cut from one
menu to another.

Also I have seen references to opening a terminal window. I take it that is
similar to going to a command prompt in windows. Can someone tell me how to open
the terminal window?

Click on [ Applications / Accessories / Terminal ] and yes it's just
the same as a command box in Windows - i.e. type in commands to be
executed.