Yes, it's possible to define cascading parameters using Report Builder 2.0
which is now available as RC1 from:
http://www.microsoft.com/downloads/details.aspx?FamilyID=cc9acbbd-570c-4712-b74d
-85f537a5a75f&displaylang=en
If you follow the examples in
http://msdn.microsoft.com/en-us/library/aa337426(SQL.90).aspx the technique
is basically the same.
-Sean

Signature
Sean Boon
Program Manager, Reporting Services
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> Is it possible to implement cascading parametrs via Report Builder
> filters in new release (2008)?
>
> TIA,
> Kamel