Problems configuring Reporting Service (Express Edt.)

Hello there.

First: The problems have their orinin in ExpressEdt.Installation of RS. The DefaultInstallation did not SetUp the ReportingServices, just installed the files. So I had to configure the ReportingServices on my own. I used the "Reporting Services Configuration Manager".

Now I've got some problems configuring the reporting services. First problems are the virtual directories.
I've tried some different users for authentification. I used a local user with lower rights, an admin-user, Network Service and IUSR_MachineName for directory security. Tried to use WindowsAuthentification and AnonymousAcces.
The AppPool-Identity runs with NeworkService rights.
When I browse the page i get an "You are not authorized to view this page..."-error.
The mentioned users have rights on the local folders and are in IIS_WPG-Group.
Whats the problem here?

Second thing I have to tell is that in "RS Config Manager" the "Initialization"-tab has a (X), so i cant get into this program-part.

Please help me....

tobiHello There.

I found out the problem is caused by the website where the virtual directories are in.

For

publishing the website I put an IP-adress in and made some host

header-entries. After deleting the host headers ReportManager und

ReportServer are working fine.

Whats the problem using RS and HostHeaders?
How do I config them right?
I get the error: "HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials"

Credentials AppPool: "Network Service"
Credential WebSite: Windows Auth.
Credential VirtDirect.: Windows Auth.

As Credential i us a local user. This user is in Adminstrator group.

Thanks in advance, Tobi