First of all, you cannot see LaTeX like other fancy applications. In other words LaTeX installation does not include GUI.
If LaTeX is installed successfully, then you can simply call it from your terminal. To check if it is really installed, type this in the terminal:
$ latex -v
This should output the version information of installed LaTeX.
If that is successful, then the simplest way to typeset is
$ latex path/to/file-to-typeset.tex
This should generate file-to-typeset.dvi in the same directory in which .tex file exists.
Some text editors can call latex command inside (e.g. Emacs) so that you don't have to switch back and forth from the text editor to the terminal.
install-tlscript was: it's usually calledinstall-tl.logand informs the base directories of your installation (they must be added to yourPATHlater). AFAIK TeXlive usually defaults them to/usr/share/. – henrique May 10 '13 at 19:36/usr/local/texlive/<year>. Only package manager provided TeX distributions (such as for Debian or Fedora) put files in/usr/share. – egreg May 10 '13 at 21:14