problem on set up vip memeber Promotions?

[ku6club]

hi. i have question about promotion for the register usergroup. anyone know i did wrong? i have member meet the promotion blow. but the User Title not change to VIP. HOW?
the step i did blow
"1. add New Usergroup Title : VIP ON Custom Usergroups
Description: VIP MEMBER
User Title (Use this to override the default 'ladder' of user titles): BLANK

2. add new promotion Usergroup: register user
Reputation Level: 1000
Days Registered: 30
Posts: 100
Promotion Strategy Choose the way that you wish the above values to be evaluated: Reputation

Promotion Type Type of promotion that the user is to receive. Select 'Primary Usergroup' to change the user's main usergroup to this group or select 'Additional Usergroups' to add this group to the user's additional: primary group
Reputation Comparison TypeThis option only applies to reputation and only when reputation has been selected as part of the Promotion Strategy above: greater or equal to

Move User to Usergroup Jumping is evaluated based on the time period defined in the Scheduled Tasks section (Default: Every 1 Hour): VIP "