1. How can i set my site's description on google? I tried using the meta tag for description but still no change. I currently use IPB forum software if that matters. I really need to figure this out besides this is bugging me.
2. How can one move up on google? For example, if someone types gaming community, how can i get my site to be one of the first few topics? Do i have to pay alot of money? Or what?..
For the 2nd Question, you need to work on link building for your website for specific keywords. If you can manage the link building yourself then you do not need to hire and pay someone to build your backlinks. This will save you money and also help you to optimize your own website. I hope you have already done a keyword research, so start working on links.
Oh yes! Don't forget the social media platforms. They play an important role in website promotion and generating traffic to your website.
Did you wait for few days after setting the meta description for your site? It takes some time for Google to update it's data.
Moving up in the search engine, specially Google, is very tough task for any webmaster specially with a keyword like "Gaming Community". Before making any website, you should research the niche, and think if the world needs another site with that niche and try to come up with an idea or feature that no other site in the same niche has. Posting articles on article directories, doing press releases, blog commenting may help.