Fix small issues Iphone, Android qualify for larger projects

We have a lot of members who can use our web based system or apps for Iphone or Android. We want to have the same functionality for web and apps so it's absolutely necessary to have a deep understanding of PHP and Mysql to be able to develop and test. Our Apps are available on App store and Android market. You can download (for free) apps with this name "Buzzador" and browse the functionality. We have new features that we need to implement in our apps. We are looking for a specialist developer for iPhone and Android development for a long period. At the moment, we have one small trial project and if you provide quality work within time then we will select you for the implementation of new features list. As a trial project you need to fix few issues on current versions of iPhone and Android apps. Following are the issues: - Radio button selection is not being update on registration page - Information erase from the fields of the page when user attach video/image and try to send form first time after installation of app - Questions which have radio or checkbox format on a page are not visible to users - Few database fields are not being update when user send a form with attachments - Names of the stored images/videos is not correct in database and server path - Login credentials should be case sensitive - Drop down options list should come from database not hard coded Few issues are only on iPhone and few are on both (iPhone and Android). Above mentioned functionality was working before but it stop to work after fixing of some other issues. We have same application on web also and we will give you access to web application code to understand logic during fixing of issues. So if you have the right competence if you are interested in a long term relation then pleas bid on this project! You must also be serious and test and debug the code and provide proof of successful testing before delivery. Beside the fixed cost for this "trial" project please also indicate you hourly rate.