[Pod]

Originally Posted by emath

and the mod requires it to be at : /.texmf/web2c/

Not specifically this mod, but your latex installation requires it to be there.

Originally Posted by emath

one more little thing : why does the \\ command for new line doesnt work?

LaTeX doesn't allow new lines in displayed equations. You can use one of amstex packages, for instance

[tex]\begin{gathered}
line 1 \\
line 2
\end{gathered}[/tex]