When I use Google Encrypted sometimes I can't see Images in the left panel (even if I click on More).
How do I make it show?
It's not showing as an option since they haven't yet made that available in an SSL version.
When you're searching you should still see an option for Google Images in the main results section if there are any relevant matches. However, clicking through will drop you out of the encrypted Google search and you'll be back in the regular version.