We have several datatypes that use the Multinode Tree Picker control.  These datatypes are not transered correctly by courier.
We were originally using Courier 2 and the problem still happens after installing 2.6_2.6.17_Hotfix.

I tested this by creating a package from our dev db containing just 1 of the affected datatypes.
The prevalues in the daabase for this datatype are as follows:
media

-1
True
0
0
1324
True
0
0

200
0

These values are saved correctly in the .courier file with the exception of the value 1324 (node id) which correctly substituted for the GUI.

When I apply this package to our test server, the values saved to the database are different i.e.

media

1
False
1
0
1324
True
1
1

200
0

This means the "data as CSV or XML" property on the test server appears XML rather than CSV.

Any ideas on why this is happening?  Is there anything in the courier config I should add to help with this?

Thanks in advance...