International Travel after 485 approval and before get GC?

I-485 got approved today it says

Current Status: Notice mailed welcoming the new permanent resident.

On September 4, 2007, we mailed you a notice that we had registered this customer's new permanent resident status. Please follow any instructions on the notice. Your new permanent resident card should be mailed within 60 days following this registration or after you complete any ADIT processing referred to in the welcome notice, whichever is later. If you move before you get your new card call customer service. You can also receive automatic e-mail updates as we process your case. Just follow the link below to register.

However, I am planning to travel abroad next week. What document should I take for my travel. I have advance parole document and have used it twice during the past three month. Can I continue to use it for my return to US?