I used the Time Intelligece wizard in AS 2005 to handle time calculations.
When I try to build a data set based on this AS 2005 cube, I cannot filter
the time calculations attribute in the standard data set designer. Is this
correct?

For instance, I am trying to build a report that will have current period
amounts as well as year to date amounts. But I've chosen to add YOY and
moving averages calculations in the cube. How do I filter out those time
calculations in the standard Data Set Designer?

If you can't do that, I could see this as a problem for most report
designers who do not know MDX but want to use a cube data source.