Unless if they are already familiar with Symphony or Rails it might be a tough sale. I would suggest taking a copy of the system, putting it into another folde

Unless if they are already familiar with Symphony or Rails it might be a tough sale. I would suggest taking a copy of the system, putting it into another folder and try to re-organize the code in the pages in a way that you are comfortable with and then see if they like it. That would be a good middle ground solution, you don't want to keep on hacking away on something that will grow out of control but on the other hand they wrote there own framework, which means they really like php.