SQL Server - SQL Server 2005 error trying to install 32 bit program on 64 bit

I am trying to install a program on my 64 bit Windows 7 laptop but I am getting the following errror:

SQL Server 2005 setup cannot continue because the installation package could not be opened.  The installation package has a missing file or your are running a 32 bit only setup program on a 64 bit computer.  To continue, verify the SQL Server 2005 package you are running is supported in WOW64.  If you are certain that you are running a supported SQL Server 2005 package and you continue to see this messagge, contact the application vendor. 

When I click Okay on the error message, a second message comes up:
The installation of Microsoft SQL Servier 2005 Express failed.  the setup will now close.  Set up returned code: 70047.

Any suggestions on how to get the program installed? 

well 32 bit are not compatible with 64 bit and try to use the repective bit softwares on respective platform

Hi
download sqlncli_x64.msi and install first and then install sql express, you can download from this link
http://download.microsoft.com/download/f/7/4/f74cbdb1-87e2-4794-9186-e3ad6bd54b41/sqlncli_x64.msi
if SQL Native Client is not installed download it from here and install
http://www.microsoft.com/downloads/en/details.aspx?familyid=DF0BA5AA-B4BD-4705-AA0A-B477BA72A9CB&displaylang=en

    
      To resolve this problem, install Microsoft .NET Framework Version 2.0 for 64-bit architectures before installing   SQL Server 2005.You can download Microsoft .NET Framework Version 2.0 from the link below.

     http://www.microsoft.com/downloads/en/details.aspx?FamilyId=b44a0000-acf8-4fa1-affb-40e78d788b00&DisplayLang=en

      Suggestion: When you install SQL Server 2005,right click on setup file click run as administrator.See the image below.
           
      If the problem is not resolved please let me know.
      Thank you.