Accommodation management. Needs capability interpreting someone else's scripts

Hello First of all we look for a team that is used to read, interpret and in case debug and upgrade quickly someone else's PHP scripts. Secondly before bidding please take note of the following conditions: 1 - Once a project starts we are used to have contacts daily with the provider, possibly through video chat/conference once a week. 2 - We can't pay any sum in advance, however 20% of the budget will be put on escrow as guarantee 3 - The program will be tested on the provider's server before delivery to us 4 - In this cooperation the provider must include 6 month of assistance and upgrade on a weekly base; final 20% of the budget will be paid at the end of these 6 month of de-bugging 5 - further 6 month of assistance and upgrade will be negotiated separately The Project. We have to complete and connect TWO sets of scripts: one contains a program to manage reservations and the other is a database with information and pictures of apartments. 1 - the #1 is not exactly a Mysql database but it contains and/or generates a series of file cards, namely - apartments - agencies - request of reservations with clients details, arrival/departure, preference - progressive templates to answer to a request (greetings, offer, confirmation1, definitive confirmation) - calendar and check of availability 2 - The second set of scripts is a Mysql database that contains records of the same apartments with as additional feature, in the face of #1, the possibility to - upload images - search - publish static html pages wherever in a web site this db also has a calendar and the checking of availability. Our need is to integrate the two settlements in a single program (for example to profit of the different functions at present the information about an accommodation has to be filled twice!) Many thanks for your attention we look forward to meet the right team! Patex48