Switch Web Twitter App To Use Oauth plus some extra

I have a web based twitter app that is already built. I am needing someone to go in and change the process to be compliant with Twitters new Oauth that they recently switched to. Please only bid if you have prior experience with Twitter only. Some other stuff that I am wanting done with the application is... - Some table redesign within the program. - Make sure all features are working with the new Oauth conversion - Help make things run more stable in background. That is it. Pretty simple project.