For the best results, install this module manually by copy/pasting the code (to the right) into your profile template. This lets you choose where the module appears in your profile.This module lets you enter your SteamID and it will display your Steam avatar & online state.
If you are online it will show when you first joined Steam. Otherwise, if you are offline, it will show when you last logged off. Private/friends-only profiles will also show the last log off.
This module uses the Steam Web API to get info based on the SteamID given. I made a simple tutorial to interact with the Steam Web API.