There are a few rules we have here, the roleplay ones here, and the OOC ones here. The best way to get a roleplay up and running is to make a character - which must be unique and not a character from the Books, Films, TV Series, Comics or other Expanded Universe, the examples for this can be found here.
Of course, if you want you can do a RP based in the Empire Strikes Back period, or indeed in any of the films settings in the Diverse RP Section.
I hope that helps, and it may also be worth you introducing yourself officially in the 'Welcome New Members' section.
Welcome to the site, and I hope you enjoy your stay here. If she has not already @Padmé the new members admin will no doubt help out, as will I or indeed most other members - just drop us a PM using the 'Conversation' feature on the forum.