I would just pick it apart and put it into a date via a formula such as:
If NumericText(Left({table.datestring},2))
and NumericText(Mid({table.datestring},4,2))
and NumericText(Right({table.datestring},2))
Then
If ToNumber(Right({Table.datestring},2)) > XX (Where XX = lowest year available in the 1900's)
Then Date(Year(ToNumber((Right({Table.datestring},2)) + 1900),
Month(ToNumber(Mid({table.datestring},4,2))),
Day(ToNumber(Left({table.datestring},2)))
Else Date(Year(ToNumber((Right({Table.datestring},2)) + 2000),
Month(ToNumber(Mid({table.datestring},4,2))),
Day(ToNumber(Left({table.datestring},2)))
Else Date(1900,1,1)
I use 1/1/1900 as my error date as that is one that is not used in any of our applications, and is easy to search for.