I was able to do this but, as you said, since they are related sites, I had to do it under another screen name. I could not use the same screen name that I use under Party Poker. Although I did put in all of the same contact information and they still gave me the deposit bonus. They also sent me a free $10 recently because I hadn't played on Empire for a couple of months and they were most likely sending it as a way of enticing me back. I have news for ya... it worked!