Hello,
We have reviewed provided details along with existing website address and attached doc file. Almost every thing is clear and we are component to resolve issues/bugs/modifications. We need credentials/admin details to look over code (we need to check how your previous developer used code). Once we credentials we will go through with code and submit accurate price and turn around time.
For safer side, we will work at out local server and once all bugs/issue fixed, we will transfer at your online server.
Check our 200+ reviews at http://www.freelancer.com/u/jkphugat.html and portfolio. We are open to respond on your questions/suggestions before you award project.
I will be waiting for your response and we are interested to work with you.
Thank you,
In kindness - Jitender Singh