Property Promotion - Full Trust Form

Hi, 

I have created an InfoPath template based on "Blank" containing custom VSTA code (Full Trust), uploaded it to MOSS 2007 for use with Forms Services, activated it, used it to create a content type in a site collection, then created a document library where users can create new instances based on the template.

In Form Options I created a Property Promotion, I'd like that a field of infopath create a colunm in sharepoint, but the column not is created. Whats happen????

If the infopath form was Domain Security the column will be created. But i can't use VSTA.

I`m using Infopath 2007!

Help me please!

Att