implementing security templates

Hi,

I am juan from argentina.

I have a task of implementing some bestion hosts in the DMZ so im

implementing windows 2003 servers with the most tighten security

template from microsoft.

the problem is that after I implemented the template nothing worked so

I tried to roll back to setup security.inf which is the default

security policy and still nothing workrd ! so like a stupid, I had to

reinstall the server...

I have two questions:

1. was I doing something wrong?

2. is there a tool which tells me why the application cant run after

the implementing the security policy? maybe a tool which tells me that

this or that registry key is blocked or a spacific registry key doesnt

have enogh permissions etc..?

thanks a lot !

Juan