Just two quick questions.
How do i set the page display sort order? It’s displaying newest post first. I’d prefer it was oldest first.
Also is there a social networking plugin? Would like to tweet the posts and replies.
Nice product – I’m Impressed.. 
Check your Simple:Press Options – General Display Settings and see if select to sort topics posts newest to oldest is turned on.
Far as a Simple:Press provided plugin there is not one. There are several WordPress social plugins that others have used with mixed success.
There is a SP FAQ that talks about how you can do it manually though. See http://codex.simple-press.com/codex/faq/problem-with-post-edit-buttonow-to/problem-with-post-edit-buttonow-to-add-twitter-facebook-plus-one-or-other-buttons/