We have an advert up on SH in the Couples for Couples section.
We would also like to put an ad in some other sections.
Do we have to register again or is it possible to do this having just registered once?
Don't cross post in multiple categories just so your ad gets seen by everyone. If you are needlessly placing your Ad in multiple and irrelevant categories you WILL get banned from using the site, because it is annoying to everyone else using the site correctly, and adds an extra burden on us to sort it out.