Startup Programs Not Being Executed

I am new to Vista and am crippled by all of the security requirement. All of

my startup programs are not working, and I am particularly concerned with AVG

being blocked.

When I bring up Windows Defender it is telling me that AVG is not yet

classified. How do I get it classified so that it runs when I start the

computer.

Thank you for your help.

Cheers -

george