problem publishing a website on IIS7.5

• I've enabled IIS services and static content
• I've revert to parent the staticFile under handler mappings
• I've registered the asp.net again in command prompt(the regiis.exe thing)
• In IIS manager i've added my website adress under sites, stopped default web site and started mine.
• I've added my site to classic.NET AppPool(integrated,and v4.0)
• I've enabled the default browsing..
• I've allowed isapi cgi restrictions
• I've also tried downgrade the .net framework from 4 to 3.5 in VS 
• I've done all the advices that generally covered..

Here is my web.config:

<configuration>

<system.webServer> 

<directoryBrowseenabled="true"showFlags="Date, Time, Size, Extension"/> 

<defaultDocument> 

<files> 

<addvalue="AnaSayfa.aspx"/> 

</files> 

</defaultDocument>

</system.webServer> 

<system.web> 

<compilationdebug="true"targetFramework="4.0"/> 

</system.web> 

</configuration>

any help would be greatly greatly greatly! appreciated.