Here is my thing: I have a set of data that has a column of key numbers (not
in any order) with data referring to each number in the same row. I can sort
the key numbers in order of date because i know what numbers correspond to
what date (another sheet has both on it). I need to sort the rows in the
other sheets to be in the same order as the ones sorted by date.

If that isn't clear then i'll try this:
B Numbers (sorted by date): 6, 90, 31, 60, 39, 74...
A Numbers: 6,31, 39, 60, 74, 90...
I need to sort the rows of the A numbers to match that of the B numbers

Thanks for your help