Dear Marco,
I understand your limited budget in the mean time, yet I'm happy to initially start this project with you. I trust you will pay any dues, and will be more than happy to work again with such a clear employer.
Back to business, I analysed the search module and it seems it is not linked to Koparent in anyway! Did the old developer made it upon request? Because I'm afraid it is not connected to the database!
Anyways, and as usual, I just want to you to relax while I fix this for you.
Kindest regards.