I found this driver at this website: http://www.ortek.com/ListDrivers.asp?ProductId=P20030406205540
The "rar" file is the original download. The "MCK-2000C'zip'" file, I unpacked, and repacked for those who don't have "WINRAR". The third file, a company sent me & I havn't looked at it yet.
The first two are an exact match for the keyboard though, I promise!