I have just downloaded the most recent beta of Scrivener. I tried dragging .doc (word) files into the default folders of the binder. The titles appear, but none of the text is transfered. After attempting this in different folders about 4-5 times with no better results, the program crashed.
Hmm, not sure what is causing this bug, but you might for the time being have better luck exporting it as an RTF file from Word, first.
doc and docx is not supported in the beta. It will be supported before the product is released next year.