Hello Dan,
I would like to confirm that which Office 365 subscription you are using.
From your screenshot, I see there saying “Get ready for the next generation of Office 365” “which doesn’t support the next major update to Office 365”, while you post the thread in Office 365 for small business administration section.
You can reset your Internet Explorer by following http://support.microsoft.com/kb/923737 , and try again.
For your reference:
Internet Explorer 7
http://community.office365.com/en-us/wikis/administration/internet-explorer-7.aspx
Thanks,
Cherry Wang