InfoPath Dev

I am trying to deploy a browser-enabled infopath 2007 form to sharepoint in such a way that users can only "see" their own forms, while admins can see "all" forms.  We've looked into assigning item level security via a workflow, but found that users can still see all forms in the form library list (though they can't edit them). This seems like it should be a fairly common scenario-  any business form that requires personal information (like a health insurance request, payroll form, etc.) would need to behave this way.  Any suggestions about how we could set this up?

Set the default view in the library to "My Documents" and that should only allow the users to see their submitted documents. Generaly the default view is "All Documents". Using SP designer functions you should be able to make it so that the only view available to the public is "My Documents"