InfoPath Dev

I am in need of a solution to make a submitted form read only for the person who submitted it.  Once the user submits the form it will go to an approver.  Our internal admins will be able to open the form and make changes if necessary.  But if the submitter returns and opens the form, we just want them to get a read-only version of it and in some situations just not even be able to access it anymore.  One solution was to create a new view within the form, build it as a read only version of the form, and basically validate against a field in the SharePoint list that it has been filled out.  If filled out switch to the read only form.  That works ok, but isn't full proof.  Is there a way to change the author/owner of the form during submission?  So basically User 1 would submit the form, and before saving the record to SharePoint, change the user to be an internal Admin?  I guess one issue with this would be we wouldn't be able to provide a list to the user of all forms that have at least been filled out because it would look like it was filled out by our internal admin.

 Any help/guidance in this area would be great.

Thanks

Aaron

Hi, one way to do that is to use a web services or an event handler to change the security on your xml file, you give to the submitter just a read permission. If you make some change directly on the form, a user can also download the xml, modify the file and upload it on your library.

Any samples of how to change the permissions on the file?

Hi I found this about the event handler after some few research:

http://warrenrapson.wordpress.com/2009/05/20/sharepoint-event-handler-to-set-item-level-security-based-on-names-in-a-list-column/