Mmm, well Plip_Plop, to apply for staff on blocktopia, you need to follow the correct format under the correct section. You need to follow this format and answer these questions. http://blocktopia.net/forum/threads/trusted-application-format.143/
There are also requirements, a month of recent active activity and 2 op+ references.
If you have fulfilled those requirements, then you may apply. Good luck!
As Omgitsathong said, you need to follow the format and meet both requirements. Feel free to apply once you have met them, just remember to use the correct format.