Backup Exec 2012, reports fail to run

Hi all,

After upgrade from symantec backup exec 201o R2 to 2012 SP1a, I encountered error when running report in BE 2012, no matter it is a new custom report or a report under the reports templete. The error is:

The Server was unable to complete the requested Operation.
Unknown reason: 10.
Calling Method "ExecuteReportJobwithArgs'
BEMSDK Method 'CBemReportJob.Execute'
BEMSDK Failure Code:  10:X8

I have read your articles in the link below

http://www.symantec.com/business/support/index?page=content&id=TECH193212 

but confused about step2 and step4.

For step 2: Where can I SQL Express 2005 Sp4 SQL Native Client?

For step 4: dbupgradebuildtobuild.sql is not mentioned in step3, what exactly is it?

Please help. thanks