where are files installing with Software Center?

If you talk about on how to run the application that you have installed, you should click on the ubuntu icon on top left and search for them. You can find all the applications that you have installed or the preinstalled applications, in /usr/share/applications.

Since you are using Ubuntu 10.04 LTS, you are probably not running Unity (unless you're using the Netbook Remix). So there is no home button (Ubuntu icon) on the upper-left corner of your screen. Instead, you have Applications, System, and Places menus. Most programs installed in the Software Center are accessible in the Applications or System menus (typically in a submenu describing the very general function of the program).

If that doesn't answer your question, then please tell us:

(1) Do you not have Applications, System, and Places menus in the horizontal bar at the top of your screen?

(2) What application have you installed in the Software Center, which you are having trouble finding?

There is Applications, Places, and System at top left of screen. NONE contains the added applications. Hence my question.

I installed Mutt, Sanitizer for Email, and Pine. None showed up whatsoever.

Software Center only worked properly adding to Applications area on the first try a few days ago, now does not work. Thanks

Re Enrico advice, I understand how to get to usr/share/applications in a terminal, but not what to do to choose one and make it run. Nor how to create a desktop link for future. Thank you

This is the AMD64 version of Ubuntu. (I thought stable meant that all bugs would be taken care of, versus newer Natty or else (non-stable) and have very slow dialup preventing switching to other "flavors" easily).

Thanks Eliah Kagan, that solved my question.

Thank you Eliah, I am new to linux. That was a helpful answer. :)

Shalom