i got this working on windows server2008 runnning under IIS
easy peasy
after you get files installed on web server open htaccess and copy all,
then in IIS manager select your site , then in main window open the url rewrite.
when url rewrite is open click - import rules, paste the copied text from htaccess into window and click apply.
the site will work great except for the reports links are broken
now rule 5 action url should look like this ‘/results.php?test={R:1}’
double click rule 5 to edit it, under the rewrite rule there is a check box for append query string - make sure to put a check in it and apply the rule
you may have to restart the site for the rules to apply and now webpagetest works on IIS