I have just installed em client and I want to set it up so pictures will load automatically.
By default eM Client blocks external content, but if you want eg: all messages to automatically load pictures etc, you can enable the option in "Menu / Settings (Preferences) / Mail / Privacy) to Display unsafe content in all messages without prompting you.
However if you only want to allow certain senders to display external content such as from a eg: white senders list, or only people in your contact list etc, then you can choose those options.