IIS7 with wordpress 2.6 custom link structure paging problem

Hi,

I recently upgraded my hosting space to windows 2008 with IIS7. Earlier it was IIS6 where everything working fine.
The trouble started when i moved to new hosting space.

I am using custom permalink structure as domainname/cagegory/post.html.

Everything is working fine in IIS 6. But in IIS 7 the URL rewriting rules are easy which i implemented using web.config. So the pages are loading.
But the trouble is present in pagination where pages are not acceessable.

my domain is http://www.localsadda.com the url for pages are working fine(because of rewrite rule in web.config which was taken from wordpress site itslef) but not for pages like http://www.localsadda.com/page/6 here its giving internal server error. Do I need to modify any code or should try using IIS7 rewrite features.

Regards,
Sunil.