Support ticket display options

I have downloaded the Support system plugin and need answers to below two queries. Please help:
1. Which is the best free theme with which the plugin integrates very well. I understand it works with all the themes but still in case if there is any theme from your end which is highly recommended.
2. I would like to display the new ticket form exactly same as your site. The new ticket form is displayed in a light box. How can I do the same.

Please note: My goal is just to create one support ticketing website. There wont be any content on it and it will only be used by our internal team.