Tickets replace tokens - there are now 7 tickets (tokens). You can buy into a Level 0 (99 entrants, super turbo) where top 30 get a Step 1 ticket.
Step 1 is $3.30, Step 2 is $8.70, Step 3 is $26 and effectively replaces the old $26 token. The first two can only be used in Step SnGs - there is a variety of 6/9/18/36 person and a few shootout ones too.
Step 3 and above can be used in normal tournaments. Not sure on the amounts, but it goes up to Step 8 which is $2,100 (Step 7 is ~$600).