Just came across this interesting page on led ghosting on williams games,seems the author created a program to alter wpc roms for led's, however australia's favorite son(the pinball factory) has asked for the program to be removed.however i'm sure a quick search on google for the program would yeild results, anyway here is the link for those interested. http://emmytech.com/arcade/led_ghost_busting/

And for those intersted vp forums is hosting all the wpc led roms for download,these roms are supposed to work in real wpc pinballs as plenty of members of virtual pinball forum own real machines as well http://www.vpforums.org/index.php?

anyway back on topic: lol

I spent most of last night searching the web & joining a few forums and i was lucky enough to have some one email me a copy of the patching software.  

I will have a play with it and see how it goes