DB2 adapter updategram transaction

Greetings,

Does anyone know how to affect multiple DB2 tables using an updategram, 
within a single unit of transaction?

I have been trying to insert data into multiple tables in one transaction.

To do so, I placed the various table data in the same <sync> block as
follows:

<sync>
	<after>
		<TABLE1 Fiels1="value" Field2="value">
		<TABLE2 Fiels3="value" Field4="value">
	</after>
</sync>

or :

<sync>
	<after>
		<TABLE1 Fiels1="value" Field2="value">
	</after>
	<after>
		<TABLE2 Fiels3="value" Field4="value">
	</after>
</sync>

But I am getting error messages that look like the following:

"A SQL error has occurred. Please consult the do***entation for your 
specific DB2 version for a description of the associated Native Error and
SQL 
State. SQLSTATE: 07006, SQLCODE: -301" (ie: "An input host variable cannot
be 
used, because of its data type.")

or

"The parameter value for parameter 7 could not be converted to the native 
data type"

I am using BizTalk 2006 (not R2), HIS 2006 and connecting on an AS400 v5r1

DB2.

Thanks for any help,

Nki****