394153 how to edit a windows app.

I purchased private label rifghts to an article submit software that im allow to brand with my own company name... i got 2 things 1 being the actual appilication which i tested and works good and the 2nd was a folder named source code that has some more folders and files inside one being [login to view URL] which seems to allow me to edit the things i need however when i edit this config file and re-install the software it does NOT show my updated info i entered in the config file any ideas what im doing wrong ?