InfoPath Dev

 We have added a new fields to a form template that has specific rules associated with it.  Basically, if the field is blank, it emails to someone to fill in, who then submits it again, and it goes to sharepoint.  This is working fine on New forms, but it doesn't seem to work on existing forms already in sharepoint.  This is really important that we be able to open existing forms, make a change, and it email as the field is not filled in.   This went into production last week so my butt is on the line.  I appreciate the help in advance! Thanks

you will need to relink the old forms to the document library,

go to your document library -> settings -> document library settings -> relink documents to this document library

and relink the old documents.

 I found it to be an error in one of my rules so none of the data connections were being used. Thank you!