Check and correct checkout and user registration on PHP / MySQL eCommerce website

Hi all,\r\n\r\nBACKGROUND\r\n1) Some customers seem to be placing orders with $0 value and no items shown on the order form\r\n2) Verification link for registered users is not working\r\n3) Lost password reset link is not working\r\n4) Order history for one client shows details of another client\r\n\r\nThe website is :\r\[login to view URL]\r\n\r\nPROJECT REQUIREMENTS\r\nTest and fix above problems\r\n\r\nDo this project well and you can guarantee yourself a continuation of work.\r\n\r\nWhat we have:\r\n1) Dedicated server running Apache\r\n2) CentOS 6.4 will full root, SSH and WHM/cPanel access\r\n3) MySQL database\r\n4) PHP custom built website\r\n5) Full access to our custom built CMS\r\n6) Full cPanel access\r\n\r\nWho you are:\r\n1> Good feedback on Freelancer (do not bid if you have 0 feedback)\r\n2> Good project completion on Freelancer (must be above 65%)\r\n3> Good PHP, database and Linux skills\r\n\r\nSTART DATE\r\nThe project needs to be started ASAP\r\n\r\nDEADLINE\r\n1 week\r\n\r\nPlease note: If the project or parts of it are not completed in the above timeframes, we reserve the right to remove you from the project and choose another developer. You agree that no money will be paid to you unless the project is fully completed and we are happy with the result. Do not bid if you are not able to focus on this project 100%.\r\n\r\nMILESTONE RELEASES\r\nMilestones will be released within 24 hours of successful UAT completion.\r\n\r\nPlease ask any questions before bidding. If you bid a certain amount, do not try to change it later on.\r\n\r\nGood luck!