Re: Need help re '(.sty' file problem

[Siegfried MEUNIER-GUTTIN-CLUZEL]

You don't have to alter the preamble of this document. If you can't 
visualize a PDF output of this manual, it's because you don't have the 
LaTeX hyperref package in your LaTeX installation. I don't know what's 
your configuration, but you must have a way to add a package.
If you use windows and Miktex, you can use the package manager to do this.
Hope it helps,
Siegfried.