Some work with the text to columns but they are not all exactly the same,
Feb 1/04 doesn't work because I guess it isn't Feb 01/04 and sometimes Mar
is
written as March. The DATEVALUE function that bob suggested seems to work
for
most of them and can be modified to work of the ones with only 1 day
value.

Give this formula a try...

=DATEVALUE(MID(A21,FIND(" ",A21)+1,FIND("/",A21)-FIND("
",A21)-1)&"-"&LEFT(A21,3)&"-"&RIGHT(A21,2))

Rick