Install software for iphone app/api's on testflight/webserver & edits to app

I recently purchased software for a mobile app called welstory from here [login to view URL] Demo: [login to view URL] I have the source code etc now i would like a test version of it to be installed so that i can see what it looks like using testflight. The relevant online files/mysql database will also need to be installed on my server with the relevant apis set up so that it talks to the phone app. I will need to change the name of the app also change the app's the iphone icon & design of a couple of pages....i can provide the design background colour-i have instructions from original developer how to do that. make pictures better quality within the app - i have instructions from the makers how to do that. Attached is the information file that came with the app source for your reference as to how to install etc. I also would like two extra functionalitys coded into the app. When people go to upload a photo pre installed in the system there will be a folder of series of badges/pictures uploaded already that they could chose from. so that when people are adding a story they can also select a cover picture either from one of the preexisiting badges of from their own picture uploaded from their phone (currently the software handles phone uploads but doesn't give option to use a preexisting picture. i would also like the ability for people to be able to upload a preexisting video from their iphones standard photo/video gallery rather than only being able to record a video using the preexisting record function in the app as is the default at present.