I can't find how to request a payment. I once did, couple of months ago. I am not finding anything about Paypal on 123rf site.

oh they will pay you all by themselves.
"No request is necessary. if you are eligible, we will pay you according to the payment method you have selected in your profile. We normally process payments by the 3rd working day of every month. Payments should reach you latest in 2 weeks time for Paypal and MoneyBookers. For photographers who have opted to receive payments via check, please allow up to a month for the check to reach you."

thanks. that is why I could not recall how to request a payment.  I just checked my paypal account. the money is not there yet. I guess it must be there this week.

As far as I remember, they pay you a month after you've reached the payout limit.