I just installed the Windows version of FTM 2011, imported my Legacy fdb file and found all kinds of errors, even ones where the relationships among people were incorrect. These are very serious. I sent the FTM file that was created from the Legacy file to Ancestry support and informed them of the type of errors that occurred.
They wrote back to me that FTM 2011 does not support a direct import of fdb files. This is despite the fact that the fdb file extension is in the file type pull-down box when one is selecting a file to import.
What gives? They never responded to my last email to them.