cant vistor sql 2008 windows7 firewall

1. In the Windows Firewall dialog box, on the Exceptions tab, click Add Program.

2. Click Browse, and navigate to the instance of SQL Server that you want to access through the firewall, and then click Open. By default, SQL Server is at C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\Binn\Sqlservr.exe.

3. To close the Windows firewall program, click OK twice.

http://msdn.microsoft.com/en-us/library/ms174937(SQL.100).aspx