Hi

 i am sajjad new to Dot net nuke i have downloaded the 4.5.3 from the site. i have followed the following steps and faciing the problem in dat base configuration  plz help me inthis regrads

1     i have unzip the files in C diretory

2     set directory permission

3     created a virtual directory

4     created the DB in sql server 2005 with  Databse name dotnet nuke

5     make changes in web.config file

6    run the site, directory permissions were checked successfully

7    on data base coinfiguration page

there were two options select the file or select the database

i select the second option and put up the name of my dat base server and the databse file name dotnetnuke

and pressed the next

and received the following error

Login failed for user ''. The user is not associated with a trusted SQL Server connection.
and when i unchecked the integreated security check box  and put up the user name "DNNuser"

then i received the following error

Login failed for user 'dnnuser'.

any one can help me

thanks in advance