Follow the "new user" registration bit, you can't go wrong from there, it's dead easy. August is showing now though, if you don't see yours then JPA hasn't yet uploaded it for this month. It happened to us last month.
Check armynet just in case, if you haven't got paid by the 1st sept, go b1tch about it sharpish.
yeah i know about army net, and i know the link to view your paystatement, but when i click it it just syas "we have not recieved your pay statement for the month of ....... " it has been like this since we changed to JPA, before that it worked fine.
I also know i can view it on JPA but i do not have access to a terminal at the minute as i am on leave.