We have created some custom forms  in SharePoint 2007 (for add a New item and Edit item for some list and libraries) after migration to SP 2010 we found out thet we can use those custom forms because the document versions are 12.0.0.0 which should be 14.0.0.0  in  SharePoint 2010

Could someone please tell me if we can migrate forms from SP2007 to SP2010 as well?

I even tried to change document Version and content but still not working! Do we need to recreate those forms in SP2010?

Thanks 

Kate