What desktop are you using, Gnome, Kde ?
There are two ways of starting a App. from the Menu or Desktop, Which do you want ?
As for finding where a App is installed, open terminal window, command, "whereis gnupg2" (No Quotes in command) that will give you the path to where it is installed.
For a newbie it is tough, but after you start using linux, you want to learn how to use the command line, this is where the power of Linux really is.
May I suggest a good book, "Linux in a Nutshell 5th Edition" by O'Reilly.
Amazon.com has best price on it.
Then there is those that don't like or want anything to do with the "Command Line", but remember how disgusting it was in $Windows to find were things were put, we don't have that problem in Linux.
I have been in Linux nine years and it was at the start, very confusing to learn the "Command Line"
but it is very rewarding once you do.
Last edited by mickeyboa; 01-23-2008 at 11:31 AM.