Wth php coder for script error fix

Hi everyone,
some weeks ago i have purchased the script from trafficseller.net .The guy of the site said that he would have hosted that script on his server lifetime.Guess what? like 10days ago that guy disappeared and his hosting too.
So I've installed the script on my server,but every time i login, i can't see the drop-down menu and internet explorer says that some variables are not defined.
please check it visiting the site:

realhits.biz/dts/index.php

default username: admin
default password: pass
(this script works only with internet explorer!)

I need someone able to fix this error. Please contact me and tell me the price for your services.

Regards

Lucio