To be fair, it's hard to judge a design 1/2 way through the conversion process to a working web page. It would be handy if you could post a mock-up of what the completed design is supposed to look like (you have an approved graphic design of the site yes?).
Having said that, I'd be more concerned with the credentials of your designer. The credits say "web design: Andre Mourinho". In doing a search for this name, no valid webpage can be found on the domain
www.andremourinho.com bar some kind of warcraft game page indexed in google. Is this fellow a professional designer or a school kid making some extra money? I can't find any other work with his credits on the internet. The fact that andremourinho.com hosted on godaddy is also a bit of a worry.
In so far as the design is concerned, I think it has a great header, apart from the cheesy thumbnails. From there the design is uninteresting. The weight of the page is excessive at almost 1mb! and the layout is table based (amateur stuff imo). The design has nearly 200Kb for javascript libraries for which I can see no immediate purpose. The list goes on...
What can be done to save it? The theme for the design is established nicely in the header. The combo of diagonal texture over a grey gradient with a strong red/black logo is quite good. These elements should be repeated throughout the design, instead you have a rather plain, uninteresting layout once the header scrolls out of view.
I'd also like to see a unique product advantage touted some where. Something that makes your company stand above the competition; some awards or PR or something. A catchy tagline perhaps? The design just needs some pizazz to do the logo/header justice to finish it off.
