Webmail CGI Script Needs Errors Repaired

I have a webmail cgi script that has error's through-out it. Need someone to go through and CHECK the INTIRE script and correct ALL error's in it. I will also need all font face displayed in "Arial or Verdana". Finding all the errors would rest intirely with you, cause I am Not the coder. You as a coder would know what to look for when testing out ALL the functions of the script into finding the errors. Please use your own server for your own test purposes of the script. Please also note, after repair changes are made to the script, please double check and re-install script on your server again to make sure when doing a fresh (installation), everything works fine before it gets back to me. Payment through GET escrow or PayPal after 100% completion of repair work to script to my satisfaction. Thank You...