Well, this is a nice and and simple tutorial:
1. Follow the template provided by Nexus, based on a Narutoverse character or you can make a custom character from another universe.
2. Make sure you are following the rules supported by Rei, and the Bio Rules by Caliburn, don't rush, take it slow and go from tab to tab.
3. People like bios pleasing to the Eye, but custom coding will make your bio take longer to get approved.
4. don't hesitate, if you are sure you read the rules and were on the Wiki that the character is from and finished the history, and personality, you should publish it, Caliburn will give you some slack as it is your first.
5. post and wait, usually it would take a week, but now Caliburn became Admin and has much more work, so it might take more than three.... WEEKS...
Links:
Nexus' basic bio Template:
You must be registered for see links
Rei's R&R:
You must be registered for see links
Caliburn's BRQA:
You must be registered for see links
Everything about RPing can be found in the links above, trust me, i never wondered about something and couldn't find it after looking thouroughly!