Questions regarding Q&A issues

I just installed the plugin and having issues. What I need please read the points;

1. How I can add this in my new page, dont want this permalink (http://site.com/questions) I want this (http://site.com/ask/questions).

2. I want guest can post the answer and vote up/down the question or answer.

3. I dont want to show WP Editor, I want to show simple editor with BOLD, ITALIC, UNDERLINE, QUOTE.

4. My sidebar is not showing properly.

Currently I having these issue and how I can solve this?