how do i do stuff here,what do i do here?
By here do you mean the forums, or the game in general.
Okay, well, here is a guide to nationstates created by another player: http://forums2.jolt.co.uk/showthread.php?t=357975
But if you mean the forums, I highly suggest you read the stickies, situated at the top of each section, pertaining specifically to that certain section.
You can do whatever you want really, provided that you abide by the rules and regulations.
Hi Jarjar, I believe you registered on the Nasicournia forum? Feel free to PM me there and/or start a questions thread; everyone will be happy to help you. :)