AFAIK (and I dunno much lol) it went offline because of a stupid mistake realy - The owner is in Canada, while ISP was in America - there seems to have been a misunderstanding between them about payment (Canadian/US Dollars) and the ISP (might have been his vendor too) took the site off without even a warning
Last I heard he found a new ISP and is now busy updating the Site's software before going online again.
It's like the IL-2 patches - 2 weeks
Although I don't use d/l skins myself - it's times like these that a site like IL-2Skins (just like mudmovers/AirWarfare did when it went down) proofs its worth to the community realy.
So be supportive and patient I'd say