Web pages with secure and nonsecure items:
Are you getting Popups about Web pages in Internet Explorer 7. Annoying isn't it ...

"This page contains both secure and nonsecure items. Do you want to display the nonsecure items?"

Often secure pages have links to nonsecure stuff, like images.
To turn off the error message:
Go to Tools,
select Internet Options,
go to the Security tab.
Click Custom Level,
scroll down to Miscellaneous,
and find button for "Display mixed content".
It is set to Prompt.
If you change it to Enable, nonsecure content will always be displayed.
(If you change it to Disable, nonsecure content cannot be displayed.)
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Downloading Images from an Outlook Email:

Three easy workarounds to this problem:

Option a: You can copy the image to the clipboard and paste it into a photo editing tool like Paint or Photoshop.

Option b: Open the email message and save it as an HTML file (File -> Save As -> Web page) – this will save all the embedded pictures in one folder. It’s the same trick that’s often used to extract pictures from PowerPoint slide-shows and is recommended when you want to download multiple images from the same message.

Option c: This is my favorite. Open the e-mail message and under the Message tab, select Other Actions -> View in Browser. This would open your mail inside the default web browser as a regular HTML web page and you can right-click to save an embedded picture.(as a gif)

Option c probably works with Office 2007 only so if you are using an earlier version of Outlook, please use the #b option.

Option d: go directly to  hotmail, google, gmail and save as jpg
(not embedded)