Building data model using business modeler in demantra

Hello.
During this week I've been trying to build a data model using the business modeler but i keep getting an error during the process. My main problem is that I don't really know if i am making the mistake or it is a configuration problem with my demantra install. To begin with I'm trying to build the most simple of the models, 3 files or tables (tryed both) sales, items, and location, all joined by their respectives id's. So If anyone could be so kind to direct me to a tutorial with an example (besides the implementation guide) or a anything like that will be greatly appreciated.
Thanks!
Data tables estructure:
Sales table:
Item_Id|Item_Name|Org_Id|Org_Name|Site_Id|Site_name|sales_date|Quantity
Items table:
Item_Id|Item_Name
Location table:
Org_Id|Org_Name|Site_Id|Site_name
So far I've tryed building the model with one record on each table.
this is the error that i'm getting:
<a href="http://imageshack.us/photo/my-images/832/errornuevo.png/"></a>
Uploaded with ImageShack.us

We currently don't support DataControls based on the ADF BC technology. We will consider such support if there is a strong interest in that use case.
Independent of the IDE's you use, there are ways to expose services based on ADF BC that can then be consumed by the view layer. A Google search will point you to some of the approaches.
HTH. Thanks for your interest in OEPE.

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