You might have noticed that I installed a forum extension that can put the profile info stuff near posts to the left side.
This is optional, you can go click your username in the top right corner and click User control panel, go to the Board preferences tab, from the left menu select Edit display options, and look for the option called Display postprofile left.
Select Yes to put stuff on the left side. Select No if you'd rather have it on the right side.
Here is a direct link to this section of the control panel: ucp.php?i=ucp_prefs&mode=view
here is what you need to change, don't forget to click Submit!