For the 3524,  I would say to assign the user ports to a vlan of your choice using the "switchport access vlan " and still shutdown the interface vlan1.

Try shutting down vlan 1 on the 3524, make sure vlan 5 is enabled and ping again

OK, try this instead on the 3524  show int gi0/2 switchport

Issue "show interface trunk" on both switches, do you see your vlans on the trunk?