Pass parameter to ssrs report based on cube

Question

hi folks:
  I am working on a weekly report based on cube. Users are able to pull out data by themselves using excel. Now they want this to be scheduled to run on a weekly basis via SSRS. The date hierarchy (date.calendar)  is like this: Year -> Quarter
-> Month -> Week
 I want users to be able to pick any week (only one week) they want and run the report.  I understand I need to create a parameter @week .
The problem is how to populate this parameter @week in mdx since the source is a cube db.
 Any idea?
 Thanks
 Hui
--Currently using Reporting Service 2000; Visual Studio .NET 2003; Visual Source Safe SSIS 2008 SSAS 2008, SVN --

Answer 1

Thanks Charlie, your solution is pretty close now. When I try out the shareddataset via cube, I found the following statement in the query via query designer:
WHERE ( [Checkoutdate].[Fiscal Year Calendar].[Week].&[23]&[2014]&[2]&[6] )
23 is the week no, 2014 is the year, 2 is the quarter and 6 is the month. I intend to create 4 parameters so that users could pick year, quarter , month and week. 
The question here is the sequence, do I have to strictly follow the sequence  [week - year - quarter - month] or it doesn't matter? 
SELECT {STRTOMEMBER("[Date].[Calendar Weeks].[Calendar Week].&["+@Week+"]&["+@Year+"]&["+@quarter+"]&["+@month+"]
")} ON 0
or can I go like this as it's more intuitive:  
SELECT {STRTOMEMBER("[Date].[Calendar Weeks].[Calendar Week].&["+@year+"]&["+@quarter+"]&["+@month+"]&["+@week+"]
")} ON 0
--Currently using Reporting Service 2000; Visual Studio .NET 2003; Visual Source Safe SSIS 2008 SSAS 2008, SVN --