One thing that's loosing your forum lots of hits is when you scroll over 'Community' on the main navigation bar, you only see IRC chat. If you click, it takes you to the forum, but most people, myself included only thought their was IRC and no forum.
If you add community too, I bet you you'll get an improvement on the amount of guests.
Another thing, when someone visits your website, you want them to know exaclty what it is. There's nothing there as says, 'Website hosting' or something. With that, your target market could be newbs as well as people looking for hosting. All you're really saying is, what kind of servers you have. Use something like; 'Website Hosting Packages & Servers!'
With any website the front page gets the most views. After that a lot of people leave. You need to get as much stuff you can on there, but keeping it simple. People don't want to trail around looking for feature lists or price. List things, and provide information from other pages, and make a 'Read More' link to lead else-ware.
Good Luck.