Sim unlock for SPV C500?

Hi

I recently bought a C500. It turned out to have been bought over Ebay from a previous owner.

The problem is that the phone is sim-locked. Is it possible to unlock the phone without having an Orange sim?

The main problem is that i live in Denmark and I have no idea of where to get hold of an Orange sim.

So is it possible to remove the simlock without actually having an Orange sim in the phone?

Thanks!