Credit file, old repossesion and mortgage

Hi all

I hope someone can help?

I had a house repossesed back in 2008, and had a shortfall of £50k, but never heard anything regarding paying it back. Yet they were kept up to date with my addresses.
Was going through a divorce then also.
Anyway, i am now looking at getting a mortgage to buy again with my new partner.

I have looked at all 3 credit reports and all are good, with no record of my old mortgage, repossesion or shortfall.......
Am i lucky? Missing something? But i am definatly confused... Its not been 6 years yet!

Advice would be much appreciated.

Thanks.