I had a crack and the software has been updated to V1.3. Massive difference to what it was running. I am seeing stuff during the game that I haven't seen before.
I would still like to update to the latest version if possible. If anyone could update my PUB card I would be eternally grateful. 
V1.3 has all of the good stuff included. I highly recommend changing the new settings you have to play with - namely;
Added the ability to loop the ball under certain conditions.
(Scenes where the shot does nothing, or if LOCK is lit let the ball loop around.)
Adjustments are added to control this behavior. (Default: OFF)
Added an adjustment to let the ball loop through the loop shots during bonus wave sudden death.
Adjustment "Bonus Wave Ending" has 2 settings:
"Ramps+Loops" (original behavior) and ""Ramp Only" (new behavior)
Set the first option to ON and the 2nd to "Ramp only" - now when you shoot loops (including the middle one) that don't do anything in the mode, the ball wont get dropped into the pops all the time. Makes a fast game even faster! The 2nd one means you can keep shooting for bonus Xs in the bonus wave after you're down to the last ball, only the ramp will end the mode.
V1.4 & 1.5 were just bug fixes and coin handling stuff, so you might be OK staying on 1.3. The bug that I did experience before I went to 1.5 was a bug in Martian Bowling that sometimes caused the game to reset. Didn't reset every time, but did it often enough to be noticeable. Given that you don't get Martian Bowling that often from the "?", it isn't a complete deal breaker.
If you do want to update, check on the back of any old desktop pcs that you may have lying around - most PC desktops up until around 3-4 years ago still had a DB9 serial port (just no one used them!). As a rough guide, any desktop PC that was was running Windows XP when new is almost certainly going to have a serial port. Easy to update with a null modem cable.
