Hi how did you get the Random Media Sidebar is this an add-on or a switch option within Media Gallery? Could you explain how to do this please. I got the side bar to work however I don't want the Media to show at the top of the forum.
The settings to change this are Admin CP > Applications > Gallery Options > Block Options
There's a checkbox to enable the media block, and below it a lot of settings including checkboxes to control the position.
Note that with very few items or in certain configurations "New Media" may be better than "Random Media" (we've made some improvements for the next release).