Installing mincho font for MikTeX 2.9 on Windows 7 [closed]

Question

I want to use Japanese Writing in my LateX document and for that I (think that) need to install the Mincho font, which is currently not fully available from mixTeX.

My Problem is that I need to be able to write some old japanese Characters which are not displayed when I use the following piece of code to write japanese:

\newcommand{\jap}[1]{\begin{CJK}{UTF8}{gbsn}#1\end{CJK}}

What I did till now:

• I downloaded mincho-1-8-20080306.tar.gz from
  http://ctan.org/tex-archive/fonts/wadalab

• I installed the files in my MikTeX installation

• I changed the line of code from \newcommand{\jap}[1]{\begin{CJK}{UTF8}{gbsn}#1\end{CJK}} to \newcommand{\jap}[1]{\begin{CJK}{UTF8}{min}#1\end{CJK}}

I get the following error:

LaTeX Font Warning: Font shape `C70/mincho/m/n' undefined
(Font)              using `C70/song/m/n' instead on input line 146.

    ("E:\Program Files (x86)\MikTeX\tex\latex\cjk\UTF8\c70song.fd")
    ! Undefined control sequence.
    try@size@range ...extract@rangefontinfo font@info 
                                                      <-*>@nil <@nnil 

I'd appreciate any help on that matter. Especially I'd like to know where i can check if I installed the font correctly, or if there is any other way to get the characters showing that don't show with the "gbsn" font.