Web Filtering Can't Work

I have been update license web filtering on juniper ssg 5, and then i have been configuration but the result still not implement.

 This is Step By Step for my configuration

1. Object --> User --> Local --> User (exapmple)

2. Object --> User --> local group --> Group-user (example)

3. Policy --> Policy element --> Address List --> Untrust --> IP (192.168.172.0/32) example

4. Policy --> Policy element --> address --> List --> Trust --> any (0.0.0.0)

5. Policy --> Polciy element --> address --> Group --> Untrust (Group-Block) Example

6. Security --> web filtering--> categories --> Customs --> Blacklist, Whitelist (example)

7. Security --> web filtering-->profile-->customs-->ns-block (example) --> blacklist (block) -->whitelist (permit)

8. Security-->web filtering-->protocol-->integrated(sufrcontrol)SC-CPA

9.Policy-->policies-->source address(Any)-->destination address(group-Block)-->service(HTTP)-->webfiltering(check)-->action(Deny).

After configuration on above, web filtering still can't work. exapmle (blacklist-->www.facebook.com) still can access. not blocked.

Thank you 

Aris