Install Epay Alstrasoft and modify then integrate to my worpress by jamiefrancis

I bought this script http://www.alstrasoft.com/epay_enterprise.htm i want it to be installed and modified with the following: 1. improve security- remove the built in captcha and replace with http://www.captcha.net/ scripts (suggest other ways to improve security) 2… (Budget: $250-$750 USD, Jobs: Java, MySQL, PHP, WordPress)