Hi, how to come from chonming island to shanghai downtown?

We stay in chongming town and like to take the ferry ( only 10min. from the hotel ) to SH and then a taxi to downtown. The lady from the front desk at our hotel told us, its not so easy to buy a ticket, cause its only in chinese language, is that right? She advised us to take a bus, line no. 6 to ju feng road, would be one hour to downtown. Thx for your help!!!