Thanks for the continued help...you guys are really awesome!
I mamaged to create an Ssh and used winSCP to visually check the directories but I couldn't find default.cfg file at those locations? Managed to find all my recent Rom cfg files and removed those. Ran a search for the whole sd card for default.cfg and found it relating to lr-mame2003 but with a different pathway(file had unreadable symbols) Removed that and rebooted.
I feel really successful in what I have learned the last few days but my S,Q,W keys are still bound!? I'm using a conventional usb keyboard tonight at home so the issue doesn't seem to be related to my iPac.
My next plan is to change the key definitions in winipac for the iPac board. My player 1&2 pin numbers sw7 & 8's are not used so I will try swapping these keys designations over.
S-L
Q-K
W-C
This will hopefully change the conflicting s q w keys to unassigned pins. L K C don't seem to have any adverse effects in mame. So this might be the solution. On the plus side I've learned heaps the last few days-never thought I'd be able to this stuff