Partypoker has a number of methods of depositing, some of which will work for you, I suspect.

Look at their deposit page, you will see a number of ways to deposit money. The one I used involves buying a $50 phone card, which you can do with your credit card, and then the money from the phone card is transferred to your partypoker account. This is partypoker's sneaky way of getting money from a credit card to their system.