[support] http redirection problem

Hi all, I am quite new to apache php drupal stack. We are using drupal for an internal cms and for some needs we installed protect-node module. I tried installation on my local machine and the protect node module works fine . On our server some how the module does not work. I am accessing the installation as localhost/drupal on my local machine and as drupal.truzzers.com on the server , Now I am fairly sure this problem is because of apache config issue. Please do tell me how i can debug this -- A-M-I-T S|S