PHP script change and automated translation

Okay guys, here a difficult one: I have an auction script running in 5 different countries in different languages. I now need an interface, which is able to take all auctions from the 5 Databases and display them as it was only one system. But they need to be displayed in English (automated translation) so that auctions can be viewed by members from all countries in the same language. This interface should contain all options as the other systems have so that users can actually place a bid and post comments, but if they do so it must be stored into the database of the original country. I can provide you with the script. I basically need the same system but it must take information from and save new information into the original databases. If anything is unclear please let me know.