PB with portfolio (and questions)

Hi,

I’ll try to update my website (www.glanet.fr) with your template. I’ve a problem with the portfolio categories.
When i click on “ingenieurs” on this page (near the date on right): http://gnet.identipack.fr/portfolio/the-sarge/ The landing page is NOT the categories, but the HP.
I’m trying to create a link in the main menu (http://gnet.identipack.fr/categories/ingenieurs/) but it doesn’t works anyway.
Could you explain me how I can select and filter the categories (I must to creat more than 80 sheets of the Elite: Dangerous Game).

Another questions:
Is it possible to desactivate the date ?
It is possible to activate comments on portfolios?
Is it possible to add related project/portfolios @the bottom?

Thank you