I had a similar INSTALL problem, whereby after typing in “admin” and then my password it would bring me to folder wp-admin and browser would display http error. Well, I finally figured out that I did not have index.php as an allowed Directory Index with my hosting company. You see I thought as others that it was my Windows Server problem ,as some said WordPress prefers Apache. The only directory index I had was index.asp and index.htm so by a adding index.php..,Voila I have WordPress Dashboard in view and now I am ready to create a great blog.
