Debug an existing Phonegap / jQuery mobile app on Windows Phone 7+

We created a mobile app via Phonegap and jQuery mobile. The application works perfectly on iOS & Android platform, but not in Windows Phone 7+. The geolocalisation doesn't work. What the application does is to let the user search for an available guest room around him or around a given address / place. The logic is done on a server, the only thing the app does is to request a JSON response (see attachment) with all the results and data to display. The request contains the user language and the address or geolocation. There are 4-5 screens in this app : - splash screen (image) also used as credits screen - main form where user can search for an address or ask a to be geolocated - results screen (where results are displayed on a google map and listed below) - details screen (details of a specific result) with informations, "call" and "route" buttons. Also, the user can slide between photos on this screen. So what we would need is a debug of the application. The code of the application will of course be provided on demand for bidding the offer.