Unable to open few Links on SSP Site.

Steps for resolution

1. Unable to open Search Settings page on SSP Site.

Error :- Access Denied C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\LAYOUTS\1033\STYLES\Menu.css

Solution:-
Added the WSS_ADMIN_WPG Group on the 12 Folder (Security & Groups).

2. Also unable to open User Profiles and My Sites.
Error:- HTTP 403 Page not found.

Solution:-
Checked the event viewer and ntlm authentication was failing.
And we run the below command
stsadm -o authentication -type windows -usewindowsintegrated -exclusivelyusentlm -enableclientintegration -url http://abcxyz:8080

Issue resolved.