This is 5-7 days project on my estimation.
Objective: Debugging, troubleshooting layout fixes, deployement.
This is variety of small tasks. You don't need to be 10 out of 10 PHP/MySQL, but you have to be able to learn existing code's logic extremly fast. It's impossible to describe every little task because some of them are faster to fix then decribe here. Every task might require from 3 minutes to 3 hours to accomplish.
Normal ISP is MUST for extensive commincation via ICQ during a day time in California.