I have been dealing with this same issue > SQL Svr 2008, and using temp tables.  Works fine over ODBC, but nothing is returned over OLEDB.  I was able to get around this by adding set nocount on to the proc, e.g.:

 BEGIN

 SET NOCOUNT ON

or you can use ODBC

From

 http://www.qlikcommunity.com/thread/4065