is it fixed yet? 

Almost......

Mike (Homepin) dropped in last night for a yarn and a bash on some machines and we had a look at the problem - in the end it was my fault - when i replaced the Mosfets, i used some that i had grabbed for a repair to a Gottlieb Sys3 game - as it turned out these were IRL510s which are not as robust as the required IRL540 ones - hence the 510 ones spewed their guts up and blew fuses - so the 540 ones should turn up tommorrow and hopefully it will all be sweet!

Thanks Mike!