Although inner pages were indexed in January in Google but since now contents were refreshed last week on many pages but no updates on some of them despite crawl and resubmission. There is no such duplicate contents problem also. Where could be the problem and what should be done next now as it is hurting SERPs?
Things don't really happen right away so it's important that you give it some time. If you only added content last week, you need to be a little more patient.
Put the URL on your forums sig so that search engine will find your site easily and get more quality links.
Just do proper internal linking and if u have added new pages than add those pages in Google site map and resubmit it. wait for some time it will be index soon.google is taking some time for that.