Hey there,
Actually this is easy... same as you did here in this section. You go into the section you would like to post in... if it is the request section male or female just put it up like you did this question. If you have found a partner and want to pay, well then you put it in the section you think it best belongs in (I will break those down at the end of this). Make sure you include your name AND your partners name OR JUST Your partners name in the title of the new thread.
Basically you click into the section and click the New Thread button at the top, insert the title (with partners name, at least) and then the content of the post (pictures with NSFW tag, if applicable, and words)
Break down of 1x1 areas:
General Original Roleplays (1x1) - Non-taboo, singular roleplays that do not involve established characters or established settings.
Taboo Original Roleplays (1x1)
Private roleplays entailing Incest, BDSM, Furry and the like that involve original characters and settings.
Fan-Based Roleplays (1x1)
One-on roleplays that make use of established characters or settings.
Semiprivate Roleplays
Posts in here will not be visible to guests or search engines. For those of you who don't want everything out in the open.
Ok well, there you have it. Hope that helps. Feel free to contact myself or another staffer with questions.
~LD