php dynamic form generator help

[bhakti_thakkar]

hi,
in my applications a user can design his own templates for data entry. I have designed an interface which allows an user to select a kind of input required say for eg. a input/textarea or select. A user design his templates for various tasks and finally also fills it with the data. i am able to save the template design and also the data within it.
Now i want the user to map those db fileds to another form. How can i do this. Can you suggest me an alternative, interface on how should i proceed?

Thanks
bhakti