Microsoft Office for MAC and El Capitan Compatibility

When I upgraded my iMac desktop to El Capitan, I lost two useful functions in Microsoft 2011 for MAC.  First, I am unable to directly drag-and-drop attachments to e-mail directly into folders by hovering over the Safari icon. Instead, I have to open the folder hierarchy in Safari, find an appropriate folder, go back into Outlook and bring over the attachment. Alternatively, I can open up the attachment while in Outlook and do a "save-as" operation. Both approaches are far less convenient than the drag-and-drop feature. Second, I have lost the ability to search through my contacts in Outlook based on a particular field such as "first name" or "last name".  Searching for an e-mail also seems to be a problem. Since I only installed El Capitan a week ago, I am wondering what other incompatibility surprises await me. Any help would be appreciated.