InfoPath Dev

I have taken a 2010.xsn form template and am converting it back to 2007.  It will publish, but has the below error message:  How do I remove these to clear my errors?

Getting SharePoint server properties using the SharePointServerUrl, SharePointSiteUrl, SharePointListUrl, and SharePointSiteCollection functions are supported only by InfoPath 2010 or greater.

Remove the functions before saving the form.

Looks like you have a people picker control on your form.  The people picker in 2010 is different than the contact selector which was supported in 2007.  You'll have to remove the control and then republish to remove the errors.  If you want to add the control back, you'll have to follow the steps in this blog post: http://blogs.msdn.com/b/infopath/archive/2007/02/28/using-the-contact-selector-control.aspx