Assembly Drawing Balloons

I have an assembly that contains a few sub assemblies.
I created a BOM and 25 items show, each subassembly shows as one item, this is as intended.
When I created BOM balloons using Auto Balloon each items including items in sub assemblies receives a balloon.
<?:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" />
Is there a way to prevent this?

I want the Balloons to match the BOM item numbers.

I have tried to recreate you problem and I can not do it. The auto balloon only attaches balloons to the items in the BOM. Are you using a Solidworks BOM or an excel based BOM?

What version are you on?
<?:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" />
I am using a Solidworks BOM I am on SolidWorks 2006 SP3.0
The Assembly has 3 configurations

I found the problem.Before adding the Balloons, I had to change the View Properties to