gear selector adjustment?

gents,

65 valiant, column shifting auto 225. i rebuilt and reinstalled my steering column and my gear selector is now 1 gear off. based on my gear indicator: 1st is actually second, second is actually drive, drive is actually neutral, neutral is actually reverse, reverse and park both are actually park. and i am unable to shift all the way down into 1st as it bottoms out at 2nd. i've shifted the ribbed plate thing to either end of it's adjustment and it doesn't change a thing. when i pulled the column i just disconnected the 2 shifter cables, then when i reinstalled i reconnected them. so in theory the only thing that changed position is the ribbed selector plate(circled in the image below). any ideas what i did wrong? what could have changed? could it be that i switched the cables around?

thanks in advance