I am building a car classifieds script for a client of mine, I am using openautoclassifieds.com as is open source etc

I am bit stuck and need bit help if ok

My client not only wants users to list cars but also for them to list car number plates

I have asked the question in the openautoclassifieds.com forum but no one has replied and has been pu on their forum for a week now

Sorry to ask in here, is anyone able to help or know of a similar script I can use as needs to have the same features that openautoclassifieds.com has, needs to be a free php open source script if poss

The website at the mo is www.247autotrade.com

Kind regards