You are now part of the team, please add to your userpage so you are listed accordingly. You can do any job you want in the MER project. The pages on Science:MER describe how to contribute. If you have no clue in the beginning, you can simply write some solutions (CS flags) or even type the questions in the system (those are CQ flags).
We're looking at maybe doing a work session all together on Friday between 12 and 2pm, let me know if you would be interested in joining there for a while.