Updating DNN to friendly URL’s without hurting your SEO

I manage several DotNetNuke sites and noticed I had not enabled friendly URL's on one. This is a typical DNN URL...which is not very intuitive http://www.mainesgna.org/AboutMSGNA/SGNAMembershipBenefits/tabid/67/Default.aspx Using the Friendly URL feature this is the same page's URL: http://www.mainesgna.org/AboutMSGNA/SGNAMembershipBenefits.aspx I wanted to changed the URL scheme, but I didn't want lose…