Issues getting a trunk port to pass a VLAN

Last week you guys help me get a trunk up between my 3750G and a Dell Powerconnect. The trunk is up but its only passing the native VLAN 1. I'm a wits end trying to figure out whats going on. The only clue I have is that the "operational trunk encapsulation" is set to ISL. Other than that I don't see anything wrong. Any ideas?

Edit: Forgot to add that the VLANS i'm trying to get trunked over Gi1/0/25 is VLAN 402. which is created and exists in the VLAN DB

Name: Gi1/0/25 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: isl Negotiation of Trunking: Off Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none SWITCH#show interfaces switchport status Port Name Status Vlan Duplex Speed Type Gi1/0/25 *** Connection to connected trunk a-full a-1000 1000BaseLX SFP interface GigabitEthernet1/0/25 description *** Connection to XXXX *** switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiate end Port Mode Encapsulation Status Native vlan Gi1/0/1 on 802.1q trunking 1 Gi1/0/5 on 802.1q trunking 1 Gi1/0/12 on 802.1q trunking 1 Gi1/0/25 on 802.1q trunking 1 Port Vlans allowed on trunk Gi1/0/1 1-4094 Gi1/0/5 1-4094 Gi1/0/12 1-4094 Gi1/0/25 1 Port Vlans allowed and active in management domain Gi1/0/1 1,402 Gi1/0/5 1,402 Gi1/0/12 1,402 Gi1/0/25 1 Port Vlans in spanning tree forwarding state and not pruned Gi1/0/1 1,402 Gi1/0/5 1,402 Gi1/0/12 1,402 Gi1/0/25 1