I am wondering how to attach associated cells with slightly different names, here is an example:

Column A = Text Value
Column B = ID # Unique to value in A
Column C = Date

Now I have extra cells that are also in column A and are associated with each value, they pretty much the same name but also a string of text and numbers after the name. I need to attach the same date to these associated accounts that is attached to the actual account:

eg: A: Mountain Biking II , B: 456343 C: 04/11/2011 <-----actual account
A: Mountain Biking II XXx, B: 32P12 C: blank <---- associated account

How do I attach the proper dates to each associated account?