When I attempt to edit my wedding page, the edit window shows up underneath the banner ad (currently a Macy's ad) at the top of my page, making it inaccessible. I had to install Adblock just to edit my site, which I'm sure is something you would really prefer users not do, since it cuts the number of pageviews for your advertisers.
While I found a work-around, this is a really basic issue that should be fixed on your end.