Yes they accept all the payment processors.. Paypal, Alertpay ... right now the admin is having problems with Paypal .... As soon as his problems clear he said he will be able to process payments through it ...

and about the payment proof i have been paid twice already from the contest area and there are members who have been paid as well ....
and the admin is a well known and respected member of a lot of forums. So you need not worry about the honesty of the site