Hey guys, have some lost funds from 2013 which I've sporadically tried to regain access to over the years always getting an incorrect pw message. Well the other day when attempting to see my lost seed the pw was accepted but the seed window was blank. As it's such an old version and is offline I was wondering whether that was the cause of the blank window or is it possible I never created a seed? I've saved a copy of the wallet but I'm still hesitant to upgrade before getting some further advice on how to proceed.

I also tried following the advice in https://bitcointalk.org/index.php?topic=553096.0 but as it's from 2014 I'd expect it's also based on electrum being online.

Any advice would be greatly appreciated, thanks in advance.