iPad Xcode Database-Related Issue

Hi, I need an expert to fix some things on an iPad app I have. Fix is related to how information is stored in a remote database. Currently to my iPad app some users can login with user and password but data they feed gets stored in same table for all users instead separately per user. My database is mysql and stored in a remote server. I will pay you per hour. You will need to connect remotely to my computer to fix the issues due to confidentiality. We can use iChat, Teamviewer or any other for remote work. Please post your per-hour rate and past experience working with iPad and remote databases. Will take you around 2 hours to fix. Thanks