synchronize my real estate sites' ad tables

Hi, I have two instances of the same PHP script (real estate website), one in English and one translated into Romanian. I have the ad categories and types set up for romanian, and need the same structure for the english version as well, and i also need the tables to be synchronized. The script has a dynamic mysql table structure, the admin sets up a mysql table for each ad category. What i need is this: the table structure from romanian copied into the english script database (i will translate texts), and the english version working on this structure. Additionally, I need whenever an ad gets posted into one site, to be copied to the other (tables should be synchronized at all times). I know PHP, so i will assist you in finding the best solution and implementing it.