where are you looking?
on the k-1 page between part II and II there is a section final amended
check final then click on the link quickzoom to disposition information
go down to part !!
check 1a for complete disposition
then 1b and 1c will be unavailable
for date sold use date of liquidation
complete the other boxes in pink
the amount you received in liquidation is the sales price
in theory, if its always been an S-Corp and there has been no change in ownership, your basis before receiving the liquidating distribution should be the basis and equal to the distribution thus no gain or loss.