Q2A is a relatively young open source project. So far, as far as I know, there is one main contributor, Gideon. There are some other folks who it appears have been contributing translations and some other stuff. I'm proud to have contributed a plugin (the proxy sso plugin). But, overall, there are very few people involved at this point.
So my main message is that the best course is to try and figure out some of your questions yourself.
For example, if you want to try adding a form to a page, just go ahead and try it. No need to ask first...
The source is well organized. I suggest that you download a copy of it to your pc or mac and then follow it to see how it works.
If you don't have the necessary programming skills to investigate the source, then you may want to consider paying people to help you.
Later, as the project expands and gains more contributors, there will be additional people available to answer questions about it.
Also, as you gain more experience with the software, you can answer people's questions.
Hope this helped.