The blog/login.aspx does not working after upgrading IIS 6.0 to IIS 7.0 ~ 7.5

Topics: Controls
Feb 25, 2013 at 6:22 PM
Edited Feb 26, 2013 at 8:51 PM
Hi BEguys,
My company recently upgrade from IIS 6.0 to IIS 7.5 because they migrated to a new web server. Everything is fine but Blog part. The blog/login.aspx does not work with the correct user name and password that saved on the BLOG user table of our SQL Database.

After I type in correct password and username, I got this error message

+++++++++++ ERROR Message +++++++++++++++++++++++++++++++++++++++++++++

Server Error in '/' Application.

The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /blog/

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18033

+++++++++++++ ERROR Message End ++++++++++++++++++++++++++++++++++++++++++++++

I do not know which version of BlogEngine they are using.
The blogEngine was customized for this company by other developers who are no longer here.

Do you have any idea