The Importance of Not Being Too Earnest - S6-E3
Continuity mistake: When Joey accesses her email address book to send an email to Dawson, she inadvertently hits the address above his, sending her email to the entire Worthington campus. Dawson's email address in Joey's address book is DawsonLeery@worthington.edu. Dawson does not go to Worthington and would not have a campus email account.
Answer: It's the same apartment Joey had in NYC. Comparing it to the beginning of the Finale; you can tell it's exactly the same location, furnishings, Plasma TV etc. Apparently Chris was only living with her at HER apartment, and now Pacey has taken his place at the end. I guess this implies Pacey successfully started his own restaurant business in NYC as he had dreamed, to be with Joey.