It depends what you did to "pay the fine." If you paid the fine and forfeited bail, your case is OVER. You were convictec and you won't even be called let alone allowed to testify.

If you submitted bail and indicated you plead (or intended to plead) not guilty and you show up for your trial, you can proceed as if you never paid the bail. The only difference is when you almost certainly will lose, you've already got the money on deposit to pay the fine.

If you submitted a TBD request, the appearance date goes out the window. Once you lose the TBD, you needed to have requested the TDN to get back in front of the court.