InfoPath Dev

Hi...I need a hand please.

Im developing a infopath web form that is suposed to send all data to a sql server 2005 db using a web service and Im having some trouble.

I have created my webservice and I can read and write to the database, but my problem is if I need to update a form. how can I open submited form to check if the form is correct?

In a library its simple...you just search the form you want and open it, but using a web form I have no way to open a previously submited form...or at least view it like in a list...

Is it possible to send, insert update and delete forms sent to a db and a form library? can I access a library to open the form and on submit send to a library and make every change in the sql db?

 Im realy stuck with this......please help!!!!!

Isn't the form originating from a form library?  Each time you submit the form, it should also be submitting to a form library for subsequent usage.  You wouldn't just submit it to the DB.  I am not sure how your form isn't already in a form library unless you arne't using SharePoint at all and have it published to a network drive.  If you do have it published to a SharePoint form library where people click new, then simply create a new submit data connection that submits the form XML to SharePoint and add an action to your submit button that does both submits.