Unless you can find something that works for this NIC, I'd suggest you get another supported - or at least known as working - network adapter like an Intel PRO/1000 GT.
André
thank you for your response,
I've found another discussion about the same Device, and I see that's not going to be working,because there's no Drivers for this Device for ESX(i).The Drivers in the support CD for the DGE-530T are for Linux not the ESX and I can't compil or create an offline bundle or a VIB file for this device.
here is the link to the subject: http://https://communities.vmware.com/message/1281591#1281591