need to fix 2scripts

hi I have hired a person named kabirchy at scriptlance for making me 2scripts of imagehosting site, one which is point version and one without point. after paying him , he just dissppeared and i found that there are errors in the script and i suspect that he made a mechanism in them such that he knows the domians on which the scripts are installed and can operate remotely to destroy or shut a site . i personally tested and sometimes logo dissppears, sometime i am unable to login admin and now i am permanently banned from logging in admon section , there was no mechanism to get the admin pass back once forgot. so basically i need you to [login to view URL] the scripts for bugs [login to view URL] if there is any mechanism such that he can operate remotely on them , if you found any please report me so that i can take a legal action , also try to solve them [login to view URL] add something that i can recover the admin pass if forgotten Note : The scripts will be sold commercially and i own all the rights. i have many ideas in projects and i will give it to you if you make me a good solution in this. Budget : $80 max