Racking along

1. What does 'racking along' mean? (How's the old burg racking along?)

2. "Don't I know it?" Keogh would answer. "Of course you've forgotten her. Proper thing to do. Wasn't quite 0. K. of her to listen to the knocks that--er--Dink Pawson kept giving you."
"Pink Dawson!"--a word of contempt would be in Johnny's tones--"Poor white trash! That's what he was. Had five hundred acres of farming land, though; and that counted. Maybe I'll have a chance to get back at him some day.

What does 'and that counted' mean?

[Tdol]

1- getting on
2- and that mattered