Inbox Lock and Call Block applictaions for windows mobile 6.5?

i just bought an omnia b7320 windows mobile 6.5 phone, I am unable to find any application that can lock inbox with a passcode and reject calls...those which i found dont work on the phone, they give some errors..if you know any good working application for wm6.5, please post here..thanks...applications i have tried and which donot work are

- Call firewall

- Call Block

- Steelsoft Blacklist

- Lockdown 0.4