I wish you luck on the search for a host, but I'd like to add a few comments regarding your website and promotion.
To start off, no forum instantly becomes popular. Infact, almost no forums become popular without hours of blood sweat and tears daily, or just pure luck. You need to affiliate with different sites and offer something unique.
Secondly, your forum is more than 100% in width on a 1024 by 768 resolution, this needs to be fixed up.
And finally, your site will never be taken seriously without a proper domain. This will sound harsh, but in my years of webmaster experience, this has turned out to be the case time and time again.
Good luck with your site, and remember, why should users go to your computer support forum, when there's loads of bigger tech support communities highly available where they'll get a better response? This is why you need to keep disccussion alive and make a few controversial topics to draw people into registering to add their opinion.